Part 1/3 (compositor) of adding with device scale factor to transport surfaces

cc/trees/layer_tree_host_impl_unittest.cc

Index: cc/trees/layer_tree_host_impl_unittest.cc
diff --git a/cc/trees/layer_tree_host_impl_unittest.cc b/cc/trees/layer_tree_host_impl_unittest.cc
index 087a761aa9aa7b5372450fefd49ecf2bfca1ce87..0215c0a3057b69a8c508b644a0356bc037a887e2 100644
--- a/cc/trees/layer_tree_host_impl_unittest.cc
+++ b/cc/trees/layer_tree_host_impl_unittest.cc
@@ -2665,7 +2665,8 @@ class ReshapeTrackerContext: public TestWebGraphicsContext3D {
  public:
   ReshapeTrackerContext() : reshape_called_(false) {}
 
-  virtual void reshape(int width, int height) OVERRIDE {
+  virtual void reshapeWithScaleFactor(
+      int width, int height, float scale_factor) OVERRIDE {
     reshape_called_ = true;
   }
 
@@ -4507,6 +4508,9 @@ class TestRenderer : public GLRenderer, public RendererClient {
   virtual gfx::Size DeviceViewportSize() const OVERRIDE {
     return viewport_size_;
   }
+  virtual float DeviceScaleFactor() const OVERRIDE {
+    return 1.f;
+  }
   virtual const LayerTreeSettings& Settings() const OVERRIDE {
     return settings_;
   }