Aura: Resize locks with --ui-enable-threaded-compositing

cc/layer.cc

Index: cc/layer.cc
diff --git a/cc/layer.cc b/cc/layer.cc
index 7c4adf92c7b363973f23869ad2bb7afa473fbf1d..9789c3c1f967e6c59de952bc4b3b688372fbe43a 100644
--- a/cc/layer.cc
+++ b/cc/layer.cc
@@ -12,6 +12,7 @@
 #include "CCLayerImpl.h"
 #include "CCLayerTreeHost.h"
 #include "CCSettings.h"
+#include "TraceEvent.h"
 #include <public/WebAnimationDelegate.h>
 #include <public/WebLayerScrollClient.h>
 #include <public/WebSize.h>
@@ -66,6 +67,7 @@ LayerChromium::LayerChromium()
     , m_boundsContainPageScale(false)
     , m_layerAnimationDelegate(0)
     , m_layerScrollClient(0)
+    , m_deferUpdates(false)
 {
     if (m_layerId < 0) {
         s_nextLayerId = 1;
@@ -784,6 +786,25 @@ Region LayerChromium::visibleContentOpaqueRegion() const
     return Region();
 }
 
+void LayerChromium::setDeferUpdates(bool deferUpdates)
+{
+    if (m_deferUpdates == deferUpdates)
+        return;
+    m_deferUpdates = deferUpdates;
+
+    if (deferUpdates)
+        TRACE_EVENT_ASYNC_BEGIN0("cc", "LayerChromium::setDeferUpdates", this);
+    else {
+        TRACE_EVENT_ASYNC_END0("cc", "LayerChromium::setDeferUpdates", this);
+        setNeedsCommit();
+    }
+}
+
+bool LayerChromium::deferUpdates()
+{
+    return m_deferUpdates;
+}
+
 ScrollbarLayerChromium* LayerChromium::toScrollbarLayerChromium()
 {
     return 0;