Move DIP translation from ui/aura to ui/compositor

ui/gfx/compositor/layer_unittest.cc

Index: ui/gfx/compositor/layer_unittest.cc
diff --git a/ui/gfx/compositor/layer_unittest.cc b/ui/gfx/compositor/layer_unittest.cc
index 65805fd6b01a3c7079f6fbb6996dd1ac843449b9..358bedda1d74fd77d6cc8e3215400d2c515e8782 100644
--- a/ui/gfx/compositor/layer_unittest.cc
+++ b/ui/gfx/compositor/layer_unittest.cc
@@ -366,7 +366,8 @@ class LayerWithDelegateTest : public testing::Test, public CompositorDelegate {
   virtual void SetUp() OVERRIDE {
     ui::SetupTestCompositor();
     compositor_.reset(new Compositor(
-          this, gfx::kNullAcceleratedWidget, gfx::Size(1000, 1000)));
+        this, gfx::kNullAcceleratedWidget));
+    compositor_->WidgetScaleOrSizeChanged(1.0f, gfx::Size(1000, 1000));
   }
 
   virtual void TearDown() OVERRIDE {
@@ -857,7 +858,7 @@ TEST_F(LayerWithRealCompositorTest, MAYBE_CompositorObservers) {
 
 // Checks that modifying the hierarchy correctly affects final composite.
 TEST_F(LayerWithRealCompositorTest, MAYBE_ModifyHierarchy) {
-  GetCompositor()->WidgetSizeChanged(gfx::Size(50, 50));
+  GetCompositor()->WidgetScaleOrSizeChanged(1.0f, gfx::Size(50, 50));
 
   // l0
   //  +-l11
@@ -917,7 +918,7 @@ TEST_F(LayerWithRealCompositorTest, MAYBE_ModifyHierarchy) {
 // Opacity is rendered correctly.
 // Checks that modifying the hierarchy correctly affects final composite.
 TEST_F(LayerWithRealCompositorTest, MAYBE_Opacity) {
-  GetCompositor()->WidgetSizeChanged(gfx::Size(50, 50));
+  GetCompositor()->WidgetScaleOrSizeChanged(1.0f, gfx::Size(50, 50));
 
   // l0
   //  +-l11