Pass accurate contentsScale to LayerImpl.

cc/layer_tree_host_unittest.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 "config.h"
 
 #include "cc/layer_tree_host.h"
 
 #include "base/synchronization/lock.h"
 #include "cc/content_layer.h"
@@ skipping 1237 matching lines @@
     bool drawsContent() const { return true; }
     MOCK_CONST_METHOD0(preserves3D, bool());
     void paintContents(SkCanvas*, const IntRect&, FloatRect&) OVERRIDE { }
     void notifySyncRequired() { }
 };
 
 class NoScaleContentLayer : public ContentLayer {
 public:
     static scoped_refptr<NoScaleContentLayer> create(ContentLayerClient* client) { return make_scoped_refptr(new NoScaleContentLayer(client)); }
 
-    virtual bool needsContentsScale() const OVERRIDE { return false; }
+    virtual IntSize contentBounds() const OVERRIDE { return bounds(); }
+    virtual float contentsScaleX() const OVERRIDE { return 1.0; }
+    virtual float contentsScaleY() const OVERRIDE { return 1.0; }
 
 private:
     explicit NoScaleContentLayer(ContentLayerClient* client)
         : ContentLayer(client) { }
     virtual ~NoScaleContentLayer() { }
 };
 
 class LayerTreeHostTestDeviceScaleFactorScalesViewportAndLayers : public LayerTreeHostTest {
 public:
 
@@ skipping 1908 matching lines @@
     int m_numCommitComplete;
     int m_numDrawLayers;
 };
 
 TEST_F(LayerTreeHostTestContinuousAnimate, runMultiThread)
 {
     runTest(true);
 }
 
 } // namespace