aura: Take transformation into account when computing window bounds in root-window/screen.

ui/aura/window_unittest.cc

 // Copyright (c) 2012 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 "ui/aura/window.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 1107 matching lines @@
   EXPECT_EQ("0,0 100x100", child->GetBoundsInRootWindow().ToString());
 
   // The |child| window's screen bounds should move along with the |viewport|.
   viewport->SetBounds(gfx::Rect(-100, -100, 300, 300));
   EXPECT_EQ("-100,-100 100x100", child->GetBoundsInRootWindow().ToString());
 
   // The |child| window is moved to the 0,0 in screen coordinates.
   // |GetBoundsInRootWindow()| should return 0,0.
   child->SetBounds(gfx::Rect(100, 100, 100, 100));
   EXPECT_EQ("0,0 100x100", child->GetBoundsInRootWindow().ToString());
+
+  gfx::Transform transform;
+  transform.Scale(0.5, 0.5);
+  viewport->SetTransform(transform);
+  EXPECT_EQ(gfx::Rect(-100, -100, 150, 150).ToString(),
+            viewport->GetBoundsInRootWindow().ToString());
+  EXPECT_EQ(gfx::Rect(-50, -50, 50, 50).ToString(),
+            child->GetBoundsInRootWindow().ToString());
 }
 
 class MouseEnterExitWindowDelegate : public TestWindowDelegate {
  public:
   MouseEnterExitWindowDelegate() : entered_(false), exited_(false) {}
 
   virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE {
     switch (event->type()) {
       case ui::ET_MOUSE_ENTERED:
         EXPECT_TRUE(event->flags() & ui::EF_IS_SYNTHESIZED);
@@ skipping 2185 matching lines @@
               BuildRootLayerTreeDescription(*root.layer()))
         << "layer tree doesn't match at " << i;
     EXPECT_EQ(data[i].expected_description,
               BuildRootWindowTreeDescription(root))
         << "window tree doesn't match at " << i;
   }
 }
 
 }  // namespace test
 }  // namespace aura