Resync on the transaction.

Currently only Choreographer requestNextVsync will resync otherwise.
Scheduler::resync already checks to make sure resync won't happen too
frequently (750 ms currently).

Bug: 266128330
Test: see b/380398647 and its child bugs
Flag: EXEMPT bugfix
Change-Id: Id3c0fc6a62b45262f4338f8154ad2fa8c0c16a05
(cherry picked from commit a5be328)

Author: Rachel Lee

services/surfaceflinger/Scheduler/Scheduler.h

@@ -205,6 +205,7 @@ class Scheduler : public IEventThreadCallback, android::impl::MessageQueue {
         ftl::FakeGuard guard(kMainThreadContext);
         resyncToHardwareVsyncLocked(id, allowToEnable, modePtr);
     }
+    void resync() override EXCLUDES(mDisplayLock);
     void forceNextResync() { mLastResyncTime = 0; }
 
     // Passes a vsync sample to VsyncController. Returns true if
@@ -466,7 +467,6 @@ class Scheduler : public IEventThreadCallback, android::impl::MessageQueue {
     bool throttleVsync(TimePoint, uid_t) override;
     // Get frame interval
     Period getVsyncPeriod(uid_t) override EXCLUDES(mDisplayLock);
-    void resync() override EXCLUDES(mDisplayLock);
     void onExpectedPresentTimePosted(TimePoint expectedPresentTime) override EXCLUDES(mDisplayLock);
 
     std::unique_ptr<EventThread> mRenderEventThread;

services/surfaceflinger/SurfaceFlinger.cpp

@@ -4552,6 +4552,7 @@ void SurfaceFlinger::setTransactionFlags(uint32_t mask, TransactionSchedule sche
     SFTRACE_INT("mTransactionFlags", transactionFlags);
 
     if (const bool scheduled = transactionFlags & mask; !scheduled) {
+        mScheduler->resync();
         scheduleCommit(frameHint);
     } else if (frameHint == FrameHint::kActive) {
         // Even if the next frame is already scheduled, we should reset the idle timer