React sync for revisions 8e25ed2...ec6691a

Starts from c64b330 instead of 8e25ed2

The other half should be here: 0c665c0

Summary:
This sync includes the following changes:
- **[ec6691a68](facebook/react@ec6691a68 )**: Event API: remove isTargetDirectlyWithinEventComponent (#15546) //<Dominic Gannaway>//
- **[a6e30001f](facebook/react@a6e30001f )**: Delete duplicate Focus.js (#15540) //<Dominic Gannaway>//
- **[f7993d547](facebook/react@f7993d547 )**: Delete duplicate Hover.js (#15539) //<Dominic Gannaway>//
- **[c8ee10037](facebook/react@c8ee10037 )**: Delete duplicate Swipe.js (#15541) //<Dominic Gannaway>//
- **[494716c9b](facebook/react@494716c9b )**: Delete duplicate Drag.js (#15537) //<Dominic Gannaway>//
- **[377846fef](facebook/react@377846fef )**: Delete duplicate Press.js (#15538) //<Dominic Gannaway>//
- **[379515e83](facebook/react@379515e83 )**: Follow up to 15535 (#15536) //<Dominic Gannaway>//
- **[bd88982fb](facebook/react@bd88982fb )**: Event API: use `capture` for all event listeners using experimental responder system (#15526) //<Dominic Gannaway>//
- **[72ca3c60e](facebook/react@72ca3c60e )**: Bump scheduler version to 0.14.0 (#15395) //<Andrew Clark>//
- **[7882c41f6](facebook/react@7882c41f6 )**: Use lowercase entry points for event modules (#15535) //<Andrew Clark>//
- **[43c4e5f34](facebook/react@43c4e5f34 )**: Add method for forcing a lower framerate //<Nathan Schloss>//
- **[1b752f191](facebook/react@1b752f191 )**: Fixed potential interaction tracing leak in Suspense thennable memoization (#15531) //<Brian Vaughn>//
- **[12e5a13cf](facebook/react@12e5a13cf )**: [React Native] Inline calls to FabricUIManager in shared code (#15490) //<Eli White>//
- **[2cca18728](facebook/react@2cca18728 )**: React Events: add onFocusVisibleChange to Focus (#15516) //<Nicolas Gallagher>//
- **[cc5a49379](facebook/react@cc5a49379 )**: React Events: FocusScope tweaks and docs (#15515) //<Nicolas Gallagher>//
- **[796c67a25](facebook/react@796c67a25 )**: Event API: responder event types should not re-register on EventComponent update (#15514) //<Dominic Gannaway>//
- **[c4d1dcb53](facebook/react@c4d1dcb53 )**: React Events: core API documentation followup (#15506) //<Dominic Gannaway>//
- **[41ef1961c](facebook/react@41ef1961c )**: Update TopLevelEventTypes.js (#15511) //<Dan Nate>//
- **[7a482af5d](facebook/react@7a482af5d )**: Event API: Fix bug where Press root events were not being cleared (#15507) //<Dominic Gannaway>//
- **[a14e24efa](facebook/react@a14e24efa )**: React Events: core API documentation (#15505) //<Nicolas Gallagher>//
- **[8658611b6](facebook/react@8658611b6 )**: Event API: ensure event keys are unique + add validation (#15501) //<Dominic Gannaway>//
- **[d9839740e](facebook/react@d9839740e )**: React events: remove unused types (#15503) //<Nicolas Gallagher>//
- **[0b3431170](facebook/react@0b3431170 )**: React events: fix press end event dispatching (#15500) //<Nicolas Gallagher>//
- **[d1f667acc](facebook/react@d1f667acc )**: Event API: follow up fixes for FocusScope + context changes (#15496) //<Dominic Gannaway>//
- **[c530639dd](facebook/react@c530639dd )**: Minor code structure adjustments to the bundles.js file (#15079) //<Kunuk Nykjær>//
- **[ed36df46c](facebook/react@ed36df46c )**: add --watch mode to "yarn build" (#15116) //<Alec Larson>//
- **[793ef9b85](facebook/react@793ef9b85 )**: test(eslint-plugin-react-hooks): add coverage for unused custom hook (#15130) //<Redmond Tran>//
- **[d61da9387](facebook/react@d61da9387 )**: test(accumulate): add test suite for accumulate function (#15159) //<Jeffrey Berry>//
- **[a187e9b5e](facebook/react@a187e9b5e )**: React Native: Allow Views to be nested inside of Text (#15464) //<Adam Comella>//
- **[f85aadefc](facebook/react@f85aadefc )**: ADD: disablePictureInPicture attribute for HTML5 videos (#15334) //<Radu-Sebastian Amarie>//
- **[1eb2b892d](facebook/react@1eb2b892d )**: give  `canUseDOM` with a possibility to be a constant (#14194) //<FUJI Goro>//
- **[de26d6dd3](facebook/react@de26d6dd3 )**: typo fix (#15493) //<shubham>//
- **[64e3da286](facebook/react@64e3da286 )**: Event API: Add `FocusScope` surface (#15487) //<Dominic Gannaway>//
- **[3f058debc](facebook/react@3f058debc )**: Event API: various bug fixes (#15485) //<Dominic Gannaway>//
- **[fb28e9048](facebook/react@fb28e9048 )**: Add missing word to code comment for clarity (#15443) //<Brendan McLoughlin>//
- **[fa2fa3564](facebook/react@fa2fa3564 )**: Experimental event API: adds context.isTargetDirectlyWithinEventComponent (#15481) //<Dominic Gannaway>//
- **[d3af2f2a5](facebook/react@d3af2f2a5 )**: Experimental Event API: add event component mount phase callback (#15480) //<Dominic Gannaway>//
- **[ce126fbb2](facebook/react@ce126fbb2 )**: Fix priority inference of next level of work (#15478) //<Andrew Clark>//
- **[71c8759ce](facebook/react@71c8759ce )**: Measure callback timeout relative to current time (#15479) //<Andrew Clark>//
- **[9c6ff136c](facebook/react@9c6ff136c )**: Remove timeout from performance flamegraph (#15477) //<Andrew Clark>//
- **[299a2714c](facebook/react@299a2714c )**: Use stricter equality check (#15474) //<Dan Abramov>//
- **[017d6f14b](facebook/react@017d6f14b )**: Experimental Event API: add `rootEventTypes` support to event responders (#15475) //<Dominic Gannaway>//
- **[784ebd8fa](facebook/react@784ebd8fa )**: Experimental event API: rework the propagation system for event components (#15462) //<Dominic Gannaway>//
- **[587676900](facebook/react@587676900 )**: React events: initial implementation of disabled prop (#15458) //<Nicolas Gallagher>//
- **[59c7aef91](facebook/react@59c7aef91 )**: React events: add a test for focusable descendants (#15457) //<Nicolas Gallagher>//
- **[0a8da3391](facebook/react@0a8da3391 )**: React events: README update types and remove stopPropagation prop (#15456) //<Nicolas Gallagher>//
- **[d584fcdc6](facebook/react@d584fcdc6 )**: React events: use passive events where possible (#15454) //<Nicolas Gallagher>//
- **[051513bfa](facebook/react@051513bfa )**: React Events: consolidate logic for Press event component (#15451) //<Nicolas Gallagher>//
- **[cdfce1ad2](facebook/react@cdfce1ad2 )**: React events: consolidate logic of Hover event component (#15450) //<Nicolas Gallagher>//
- **[5857c89da](facebook/react@5857c89da )**: React events: extract common helper functions (#15449) //<Nicolas Gallagher>//
- **[0b50fb29f](facebook/react@0b50fb29f )**: Include rootEventTypes in DOMEventResponderSystem stopPropagation tests (#15433) //<Nicolas Gallagher>//
- **[1ae409d2c](facebook/react@1ae409d2c )**: React events: fix nested Hover components error (#15428) //<Nicolas Gallagher>//
- **[c73ab39c1](facebook/react@c73ab39c1 )**: React events: make nested Focus work as expected (#15421) //<Nicolas Gallagher>//
- **[4221565e1](facebook/react@4221565e1 )**: Cancel pending commit before starting on root //<Andrew Clark>//
- **[9ebe1768a](facebook/react@9ebe1768a )**: Experimental Event API: Redesign event responder propagation (#15408) //<Dominic Gannaway>//
- **[a30e7d992](facebook/react@a30e7d992 )**: act() tests - Reuse and properly unmount containers (#14974) //<Philipp Spiess>//
- **[8cf963c6c](facebook/react@8cf963c6c )**: React events: ignore device buttons that aren't for primary interactions (#15402) //<Nicolas Gallagher>//
- **[38bd570d4](facebook/react@38bd570d4 )**: Stop tracking bundle sizes (#15404) //<Andrew Clark>//
- **[3438e5ce8](facebook/react@3438e5ce8 )**: Experimental Event API: Add Hover onUnmount support (#15394) //<Dominic Gannaway>//
- **[805e7f873](facebook/react@805e7f873 )**: React events: add unmounting to Focus (#15396) //<Nicolas Gallagher>//
- **[543353a04](facebook/react@543353a04 )**: Experimental Event API: Remove "listener" from event objects (#15391) //<Dominic Gannaway>//
- **[9055e31e5](facebook/react@9055e31e5 )**: Replace old Fiber Scheduler with new one (#15387) //<Andrew Clark>//
- **[4e59d4f5d](facebook/react@4e59d4f5d )**: React events: add onHoverMove support (#15388) //<Nicolas Gallagher>//
- **[de7590327](facebook/react@de7590327 )**: Fix CI (#15393) //<Andrew Clark>//
- **[687e4fb6f](facebook/react@687e4fb6f )**: Bump scheduler version to 0.14.0 //<Andrew Clark>//
- **[45473c94c](facebook/react@45473c94c )**: React events: Press event fixes (#15386) //<Nicolas Gallagher>//
- **[9672cf621](facebook/react@9672cf621 )**: Experimental Event API: adds `stopPropagation` by default to Press (#15384) //<Dominic Gannaway>//
- **[a9eff329c](facebook/react@a9eff329c )**: Remove TouchHitTarget SSR logic to prevent issues with mouse events (#15381) //<Dominic Gannaway>//
- **[c9841001b](facebook/react@c9841001b )**: Experimental Event API: preventDefault handling for anchors (#15383) //<Dominic Gannaway>//
- **[c25c59c80](facebook/react@c25c59c80 )**: Apply the Just Noticeable Difference to suspense timeouts (#15367) //<Sebastian Markbåge>//
- **[3e2e930d6](facebook/react@3e2e930d6 )**: Fixes a Flow type merge conflict (#15378) //<Dominic Gannaway>//
- **[7fc91f17c](facebook/react@7fc91f17c )**: React events: add onPressMove and pressRetentionOffset to Press (#15374) //<Nicolas Gallagher>//
- **[dd9cef9fc](facebook/react@dd9cef9fc )**: Experimental Event API: Add targets and responder utility method for finding targets (#15372) //<Dominic Gannaway>//

Changelog:
[General][Changed] - React sync for revisions c64b330...ec6691a

Follow steps in the [React Native test plan](https://our.intern.facebook.com/intern/dex/react/test-workflows-react-native/).

Reviewed By: shergin

Differential Revision: D15171103

fbshipit-source-id: d16b54dfd575b3a1fa38e6a132633f42c715b4fd

Author: mdvacca

Libraries/Renderer/REVISION

@@ -1 +1 @@
-c64b330032cef887ac5f787ac4a50bb4eeca4e1d
+ec6691a68716bc59291746fc62f374a56fb435c9