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

chrome/browser/ui/ash/screenshot_taker.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 "chrome/browser/ui/ash/screenshot_taker.h"
 
 #include <climits>
 #include <string>
 
 #include "ash/shell.h"
@@ skipping 325 matching lines @@
   } else if (!GetScreenshotDirectory(&screenshot_directory)) {
     ShowNotification(ScreenshotTakerObserver::SCREENSHOT_GET_DIR_FAILED,
                      base::FilePath());
     return;
   }
   std::string screenshot_basename = !screenshot_basename_for_test_.empty() ?
       screenshot_basename_for_test_ : GetScreenshotBaseFilename();
 
   ash::Shell::RootWindowList root_windows = ash::Shell::GetAllRootWindows();
   // Reorder root_windows to take the primary root window's snapshot at first.
-  aura::RootWindow* primary_root = ash::Shell::GetPrimaryRootWindow();
+  aura::Window* primary_root = ash::Shell::GetPrimaryRootWindow();
   if (*(root_windows.begin()) != primary_root) {
     root_windows.erase(std::find(
         root_windows.begin(), root_windows.end(), primary_root));
-    root_windows.insert(root_windows.begin(), primary_root);
+    root_windows.insert(root_windows.begin(), primary_root->GetDispatcher());
   }
   for (size_t i = 0; i < root_windows.size(); ++i) {
     aura::RootWindow* root_window = root_windows[i];
     scoped_refptr<base::RefCountedBytes> png_data(new base::RefCountedBytes);
     std::string basename = screenshot_basename;
     gfx::Rect rect = root_window->bounds();
     if (root_windows.size() > 1)
       basename += base::StringPrintf(" - Display %d", static_cast<int>(i + 1));
     base::FilePath screenshot_path =
         screenshot_directory.AppendASCII(basename + ".png");
@@ skipping 137 matching lines @@
 }
 
 void ScreenshotTaker::SetScreenshotBasenameForTest(
     const std::string& basename) {
   screenshot_basename_for_test_ = basename;
 }
 
 void ScreenshotTaker::SetScreenshotProfileForTest(Profile* profile) {
   profile_for_test_ = profile;
 }