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

ui/aura/window_unittest.cc

Index: ui/aura/window_unittest.cc
diff --git a/ui/aura/window_unittest.cc b/ui/aura/window_unittest.cc
index e3e81b2d04cb93cac5eedea53c701b705c0b2222..e849330e32aeb782f1f1943dc1d016beade88139 100644
--- a/ui/aura/window_unittest.cc
+++ b/ui/aura/window_unittest.cc
@@ -1125,6 +1125,14 @@ TEST_F(WindowTest, GetBoundsInRootWindow) {
   // |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 {