Pass accurate contentsScale to LayerImpl.

cc/layer_impl_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_impl.h"
 
 #include "cc/single_thread_proxy.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ skipping 98 matching lines @@
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setPosition(arbitraryFloatPoint));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setPreserves3D(true));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setDoubleSided(false)); // constructor initializes it to "true".
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->scrollBy(arbitraryIntSize));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setScrollDelta(IntSize()));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setScrollPosition(arbitraryIntPoint));
     EXECUTE_AND_VERIFY_SUBTREE_CHANGED(root->setImplTransform(arbitraryTransform));
 
     // Changing these properties only affects the layer itself.
     EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setContentBounds(arbitraryIntSize));
+    EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setContentsScale(arbitraryNumber, arbitraryNumber));
     EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setDebugBorderColor(arbitraryColor));
     EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setDebugBorderWidth(arbitraryNumber));
     EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setDrawsContent(true));
     EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setBackgroundColor(SK_ColorGRAY));
     EXECUTE_AND_VERIFY_ONLY_LAYER_CHANGED(root->setBackgroundFilters(arbitraryFilters));
 
     // Changing these properties only affects how render surface is drawn
     EXECUTE_AND_VERIFY_ONLY_SURFACE_CHANGED(root->setOpacity(arbitraryNumber));
     EXECUTE_AND_VERIFY_ONLY_SURFACE_CHANGED(root->setTransform(arbitraryTransform));
 
@@ skipping 16 matching lines @@
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setAnchorPointZ(arbitraryNumber));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setMasksToBounds(true));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setPosition(arbitraryFloatPoint));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setPreserves3D(true));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setTransform(arbitraryTransform));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDoubleSided(false)); // constructor initializes it to "true".
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setScrollDelta(IntSize()));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setScrollPosition(arbitraryIntPoint));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setImplTransform(arbitraryTransform));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setContentBounds(arbitraryIntSize));
+    EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setContentsScale(arbitraryNumber, arbitraryNumber));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setContentsOpaque(true));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setOpacity(arbitraryNumber));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDebugBorderColor(arbitraryColor));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDebugBorderWidth(arbitraryNumber));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setDrawsContent(true));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setSublayerTransform(arbitraryTransform));
     EXECUTE_AND_VERIFY_SUBTREE_DID_NOT_CHANGE(root->setBounds(arbitraryIntSize));
 }
 
 } // namespace