Introdcue AshWindowTreeHost and move ash/chrome specific code in WTH to ash.

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 352 matching lines @@
 #if defined(USE_OZONE)
 // TODO(rjkroege): Add cursor support in ozone: http://crbug.com/252315.
 TEST_F(WindowTest, DISABLED_MoveCursorToWithTransformRootWindow) {
 #else
 TEST_F(WindowTest, MoveCursorToWithTransformRootWindow) {
 #endif
   gfx::Transform transform;
   transform.Translate(100.0, 100.0);
   transform.Rotate(90.0);
   transform.Scale(2.0, 5.0);
-  host()->SetTransform(transform);
+  host()->SetRootTransform(transform);
   host()->MoveCursorTo(gfx::Point(10, 10));
 #if !defined(OS_WIN)
   gfx::Point mouse_location;
   EXPECT_TRUE(host()->QueryMouseLocation(&mouse_location));
   // TODO(yoshiki): fix this to build on Windows. See crbug.com/133413.OD
   EXPECT_EQ("50,120", mouse_location.ToString());
 #endif
   EXPECT_EQ("10,10", gfx::Screen::GetScreenFor(
       root_window())->GetCursorScreenPoint().ToString());
 }
@@ skipping 60 matching lines @@
   gfx::Transform root_transform;
   root_transform.Translate(60.0, 70.0);
   root_transform.Rotate(-90.0);
   root_transform.Translate(-50.0, -50.0);
   root_transform.Scale(2.0, 3.0);
 
   gfx::Transform transform;
   transform.Translate(10.0, 20.0);
   transform.Rotate(10.0);
   transform.Scale(0.3f, 0.5f);
-  host()->SetTransform(root_transform);
+  host()->SetRootTransform(root_transform);
   w1->SetTransform(transform);
   w11->SetTransform(transform);
   w111->SetTransform(transform);
   w1111->SetTransform(transform);
 
   w1111->MoveCursorTo(gfx::Point(10, 10));
 
 #if !defined(OS_WIN)
   // TODO(yoshiki): fix this to build on Windows. See crbug.com/133413.
   gfx::Point mouse_location;
@@ skipping 1022 matching lines @@
 TEST_F(WindowTest, Transform) {
   gfx::Size size = host()->GetBounds().size();
   EXPECT_EQ(gfx::Rect(size),
             gfx::Screen::GetScreenFor(root_window())->GetDisplayNearestPoint(
                 gfx::Point()).bounds());
 
   // Rotate it clock-wise 90 degrees.
   gfx::Transform transform;
   transform.Translate(size.height(), 0);
   transform.Rotate(90.0);
-  host()->SetTransform(transform);
+  host()->SetRootTransform(transform);
 
   // The size should be the transformed size.
   gfx::Size transformed_size(size.height(), size.width());
   EXPECT_EQ(transformed_size.ToString(),
             root_window()->bounds().size().ToString());
   EXPECT_EQ(
       gfx::Rect(transformed_size).ToString(),
       gfx::Screen::GetScreenFor(root_window())->GetDisplayNearestPoint(
           gfx::Point()).bounds().ToString());
 
   // Host size shouldn't change.
   EXPECT_EQ(size.ToString(), host()->GetBounds().size().ToString());
 }
 
 TEST_F(WindowTest, TransformGesture) {
   gfx::Size size = host()->GetBounds().size();
 
   scoped_ptr<GestureTrackPositionDelegate> delegate(
       new GestureTrackPositionDelegate);
   scoped_ptr<Window> window(CreateTestWindowWithDelegate(delegate.get(), -1234,
       gfx::Rect(0, 0, 20, 20), root_window()));
 
   // Rotate the root-window clock-wise 90 degrees.
   gfx::Transform transform;
   transform.Translate(size.height(), 0.0);
   transform.Rotate(90.0);
-  host()->SetTransform(transform);
+  host()->SetRootTransform(transform);
 
   ui::TouchEvent press(
       ui::ET_TOUCH_PRESSED, gfx::Point(size.height() - 10, 10), 0, getTime());
   DispatchEventUsingWindowDispatcher(&press);
   EXPECT_EQ(gfx::Point(10, 10).ToString(), delegate->position().ToString());
 }
 
 namespace {
 DEFINE_WINDOW_PROPERTY_KEY(int, kIntKey, -2);
 DEFINE_WINDOW_PROPERTY_KEY(const char*, kStringKey, "squeamish");
@@ skipping 1756 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