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

webkit/compositor_bindings/web_layer_tree_view_impl.cc

Index: webkit/compositor_bindings/web_layer_tree_view_impl.cc
diff --git a/webkit/compositor_bindings/web_layer_tree_view_impl.cc b/webkit/compositor_bindings/web_layer_tree_view_impl.cc
index 85a0fec8575d29a649066c7c4c397bae7a1f5657..5165f98eb0d0be11fd6e2ef966ea69620df2480e 100644
--- a/webkit/compositor_bindings/web_layer_tree_view_impl.cc
+++ b/webkit/compositor_bindings/web_layer_tree_view_impl.cc
@@ -150,10 +150,18 @@ void WebLayerTreeViewImpl::composite()
     m_layerTreeHost->composite();
 }
 
+// TODO(ajuma): Remove this after the WebKit patch to use the 2-argument version lands.
 void WebLayerTreeViewImpl::updateAnimations(double frameBeginTimeSeconds)
 {
     base::TimeTicks frameBeginTime = base::TimeTicks::FromInternalValue(frameBeginTimeSeconds * base::Time::kMicrosecondsPerSecond);
-    m_layerTreeHost->updateAnimations(frameBeginTime);
+    m_layerTreeHost->updateAnimations(frameBeginTime, base::Time::Now());
+}
+
+void WebLayerTreeViewImpl::updateAnimations(double monotonicFrameBeginTimeSeconds, double wallClockFrameBeginTimeSeconds)
+{
+    base::TimeTicks monotonicFrameBeginTime = base::TimeTicks::FromInternalValue(monotonicFrameBeginTimeSeconds * base::Time::kMicrosecondsPerSecond);
+    base::Time wallClockFrameBeginTime = base::Time::FromInternalValue(wallClockFrameBeginTimeSeconds* base::Time::kMicrosecondsPerSecond);

[Ian Vollick, 2013/01/15 03:27:37]

It looks like Time has a ::FromDoubleT method that could be useful here.

[ajuma, 2013/01/15 16:24:08]

Done.

+    m_layerTreeHost->updateAnimations(monotonicFrameBeginTime, wallClockFrameBeginTime);
 }
 
 void WebLayerTreeViewImpl::didStopFlinging()