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

We temporarily defer commits while resizing so that the renderer has a chance to catch up with the UI window size.

Noteable changes from master:
- RWHVs can fast ACK the GPU process (not flip in the browser or TextureImageTransportSurface); useful for allowing the renderer to catch up when it gets too far behind.
- RWHVA will insist kicking a renderer frame after the lock times out on resize (wasn't necessary before)
- ui::Compositor vends draw locks (which largely just wraps to cc::Proxy) of ui::aura::RootWindow

BUG=136366
TEST=None

Review URL: https://chromiumcodereview.appspot.com/10690168

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@164460 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 6 insertions, 0 deletions

diff --git a/cc/test/layer_tree_test_common.cc b/cc/test/layer_tree_test_common.cc
index 686cd27..846e807 100644
--- a/cc/test/layer_tree_test_common.cc
+++ b/cc/test/layer_tree_test_common.cc
@@ -181,6 +181,11 @@ public:
 
     void setTestStarted(bool started) { m_testStarted = started; }
 
+    virtual void didDeferCommit() OVERRIDE
+    {
+        m_testHooks->didDeferCommit();
+    }
+
 private:
     MockLayerTreeHost(TestHooks* testHooks, cc::LayerTreeHostClient* client, const cc::LayerTreeSettings& settings)
         : LayerTreeHost(client, settings)
diff --git a/cc/test/layer_tree_test_common.h b/cc/test/layer_tree_test_common.h
index 91f9525..d1378c8 100644
--- a/cc/test/layer_tree_test_common.h
+++ b/cc/test/layer_tree_test_common.h
@@ -40,6 +40,7 @@ public:
     virtual void didCommit() { }
     virtual void didCommitAndDrawFrame() { }
     virtual void scheduleComposite() { }
+    virtual void didDeferCommit() { }
 
     // Implementation of WebAnimationDelegate
     virtual void notifyAnimationStarted(double time) OVERRIDE { }