Create RootWindowTransformer after root window's bounds and scale factor are updated.

ash/wm/panels/panel_window_resizer_unittest.cc

 // Copyright (c) 2013 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 "ash/wm/panels/panel_window_resizer.h"
 
 #include "ash/launcher/launcher.h"
 #include "ash/launcher/launcher_model.h"
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf_layout_manager.h"
@@ skipping 203 matching lines @@
  private:
   bool is_rtl_;
   std::string original_locale;
 
   DISALLOW_COPY_AND_ASSIGN(PanelWindowResizerTextDirectionTest);
 };
 
 // Verifies a window can be dragged from the panel and detached and then
 // reattached.
 TEST_F(PanelWindowResizerTest, PanelDetachReattachBottom) {
+ if (!SupportsHostWindowResize())
+    return;
+
   scoped_ptr<aura::Window> window(
       CreatePanelWindow(gfx::Rect(0, 0, 201, 201)));
   DetachReattachTest(window.get(), 0, -1);
 }
 
 TEST_F(PanelWindowResizerTest, PanelDetachReattachLeft) {
+ if (!SupportsHostWindowResize())
+    return;
+
   ash::Shell* shell = ash::Shell::GetInstance();
   shell->SetShelfAlignment(SHELF_ALIGNMENT_LEFT, shell->GetPrimaryRootWindow());
   scoped_ptr<aura::Window> window(
       CreatePanelWindow(gfx::Rect(0, 0, 201, 201)));
   DetachReattachTest(window.get(), 1, 0);
 }
 
 #if defined(OS_WIN)
 // TODO(flackr): Positioning of the panel seems to be off on Windows Aura when
 // attached to the right (http://crbug.com/180892).
 #define MAYBE_PanelDetachReattachRight DISABLED_PanelDetachReattachRight
 #else
 #define MAYBE_PanelDetachReattachRight PanelDetachReattachRight
 #endif
 
 TEST_F(PanelWindowResizerTest, MAYBE_PanelDetachReattachRight) {
   ash::Shell* shell = ash::Shell::GetInstance();
   shell->SetShelfAlignment(SHELF_ALIGNMENT_RIGHT,
                            shell->GetPrimaryRootWindow());
   scoped_ptr<aura::Window> window(
       CreatePanelWindow(gfx::Rect(0, 0, 201, 201)));
   DetachReattachTest(window.get(), -1, 0);
 }
 
 TEST_F(PanelWindowResizerTest, PanelDetachReattachTop) {
+ if (!SupportsHostWindowResize())
+    return;
+
   ash::Shell* shell = ash::Shell::GetInstance();
   shell->SetShelfAlignment(SHELF_ALIGNMENT_TOP, shell->GetPrimaryRootWindow());
   scoped_ptr<aura::Window> window(
       CreatePanelWindow(gfx::Rect(0, 0, 201, 201)));
   DetachReattachTest(window.get(), 0, 1);
 }
 
 TEST_F(PanelWindowResizerTest, PanelDetachReattachMultipleDisplays) {
   if (!SupportsMultipleDisplays())
     return;
@@ skipping 160 matching lines @@
   DragMove(20, 0);
   EXPECT_EQ(internal::kShellWindowId_PanelContainer, window->parent()->id());
   DragEnd();
 
   // When dropped it should return to the default container.
   EXPECT_EQ(internal::kShellWindowId_WorkspaceContainer,
             window->parent()->id());
 }
 
 TEST_P(PanelWindowResizerTextDirectionTest, DragReordersPanelsHorizontal) {
+  if (!SupportsHostWindowResize())
+    return;
+
   DragAlongShelfReorder(base::i18n::IsRTL() ? 1 : -1, 0);
 }
 
 TEST_F(PanelWindowResizerTest, DragReordersPanelsVertical) {
   ash::Shell* shell = ash::Shell::GetInstance();
   shell->SetShelfAlignment(SHELF_ALIGNMENT_LEFT, shell->GetPrimaryRootWindow());
   DragAlongShelfReorder(0, -1);
 }
 
 INSTANTIATE_TEST_CASE_P(LtrRtl, PanelWindowResizerTextDirectionTest,
                         testing::Bool());
 
 }  // namespace internal
 }  // namespace ash