Make LayerTreeHost::animateLayers take a wall clock time in addition to a monotonic time

cc/thread_proxy.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/thread_proxy.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "cc/delay_based_time_source.h"
 #include "cc/draw_quad.h"
@@ skipping 509 matching lines @@
     }
 
     m_beginFrameCompletionEventOnImplThread = completion;
 }
 
 void ThreadProxy::scheduledActionBeginFrame()
 {
     TRACE_EVENT0("cc", "ThreadProxy::scheduledActionBeginFrame");
     scoped_ptr<BeginFrameAndCommitState> beginFrameState(new BeginFrameAndCommitState);
     beginFrameState->monotonicFrameBeginTime = base::TimeTicks::Now();
+    beginFrameState->wallClockFrameBeginTime = base::Time::Now();
     beginFrameState->scrollInfo = m_layerTreeHostImpl->processScrollDeltas();
     beginFrameState->implTransform = m_layerTreeHostImpl->implTransform();
     DCHECK_GT(m_layerTreeHostImpl->memoryAllocationLimitBytes(), 0u);
     beginFrameState->memoryAllocationLimitBytes = m_layerTreeHostImpl->memoryAllocationLimitBytes();
     Proxy::mainThread()->postTask(base::Bind(&ThreadProxy::beginFrame, m_mainThreadWeakPtr, base::Passed(&beginFrameState)));
 
     if (m_beginFrameCompletionEventOnImplThread) {
         m_beginFrameCompletionEventOnImplThread->signal();
         m_beginFrameCompletionEventOnImplThread = 0;
     }
@@ skipping 39 matching lines @@
         m_commitRequestSentToImplThread = false;
 
         TRACE_EVENT0("cc", "EarlyOut_NotVisible");
         Proxy::implThread()->postTask(base::Bind(&ThreadProxy::beginFrameAbortedOnImplThread, m_implThreadWeakPtr));
         return;
     }
 
     m_layerTreeHost->willBeginFrame();
 
     if (beginFrameState)
-        m_layerTreeHost->updateAnimations(beginFrameState->monotonicFrameBeginTime);
+        m_layerTreeHost->updateAnimations(beginFrameState->monotonicFrameBeginTime, beginFrameState->wallClockFrameBeginTime);
 
     // Unlink any backings that the impl thread has evicted, so that we know to re-paint
     // them in updateLayers.
     if (m_layerTreeHost->contentsTextureManager())
         m_layerTreeHost->contentsTextureManager()->unlinkAndClearEvictedBackings();
 
     m_layerTreeHost->layout();
 
     // Clear the commit flag after updating animations and layout here --- objects that only
     // layout when painted will trigger another setNeedsCommit inside
@@ skipping 442 matching lines @@
 }
 
 void ThreadProxy::capturePictureOnImplThread(CompletionEvent* completion, skia::RefPtr<SkPicture>* picture)
 {
     DCHECK(isImplThread());
     *picture = m_layerTreeHostImpl->capturePicture();
     completion->signal();
 }
 
 }  // namespace cc