Make GetRootWindow() return a Window instead of a RootWindow.

content/browser/web_contents/touch_editable_impl_aura_browsertest.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 "content/browser/web_contents/touch_editable_impl_aura.h"
 
 #include "base/command_line.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/test_timeouts.h"
@@ skipping 171 matching lines @@
 
   // Starts the test server and navigates to the given url. Sets a large enough
   // size to the root window.  Returns after the navigation to the url is
   // complete.
   void StartTestWithPage(const std::string& url) {
     ASSERT_TRUE(test_server()->Start());
     GURL test_url(test_server()->GetURL(url));
     NavigateToURL(shell(), test_url);
     aura::Window* content =
         shell()->web_contents()->GetView()->GetContentNativeView();
-    content->GetRootWindow()->SetHostSize(gfx::Size(800, 600));
+    content->GetDispatcher()->SetHostSize(gfx::Size(800, 600));
   }
 
   // TODO(mohsen): Remove logs if the test showed no flakiness anymore.
   void TestTouchSelectionOriginatingFromWebpage() {
     ASSERT_NO_FATAL_FAILURE(
         StartTestWithPage("files/touch_selection.html"));
     WebContentsImpl* web_contents =
         static_cast<WebContentsImpl*>(shell()->web_contents());
     RenderViewHostImpl* view_host = static_cast<RenderViewHostImpl*>(
         web_contents->GetRenderViewHost());
@@ skipping 249 matching lines @@
                        TouchSelectionOnLongPressTest) {
   TestTouchSelectionOnLongPress();
 }
 
 IN_PROC_BROWSER_TEST_F(TouchEditableImplAuraTest,
                        TouchCursorInTextfieldTest) {
   TestTouchCursorInTextfield();
 }
 
 }  // namespace content