mash: Migrate wallpaper controllers to ash/common.

chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager_policy_browsertest.cc

 // Copyright 2014 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 <stdint.h>
 
 #include <memory>
 #include <string>
 #include <vector>
 
-#include "ash/shell.h"
-#include "ash/wallpaper/wallpaper_controller.h"
-#include "ash/wallpaper/wallpaper_controller_observer.h"
+#include "ash/common/wallpaper/wallpaper_controller.h"
+#include "ash/common/wallpaper/wallpaper_controller_observer.h"
+#include "ash/common/wm_shell.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/json/json_writer.h"
 #include "base/macros.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
 #include "chrome/browser/chromeos/login/login_manager_test.h"
 #include "chrome/browser/chromeos/login/startup_utils.h"
@@ skipping 84 matching lines @@
   uint64_t pixel_number = bitmap.width() * bitmap.height();
   return SkColorSetARGB((a + pixel_number / 2) / pixel_number,
                         (r + pixel_number / 2) / pixel_number,
                         (g + pixel_number / 2) / pixel_number,
                         (b + pixel_number / 2) / pixel_number);
 }
 
 // Obtain wallpaper image and return its average ARGB color.
 SkColor GetAverageWallpaperColor() {
   const gfx::ImageSkia image =
-      ash::Shell::GetInstance()->wallpaper_controller()->GetWallpaper();
+      ash::WmShell::Get()->wallpaper_controller()->GetWallpaper();
 
   const gfx::ImageSkiaRep& representation = image.GetRepresentation(1.);
   if (representation.is_null()) {
     ADD_FAILURE() << "No image representation.";
     return SkColorSetARGB(0, 0, 0, 0);
   }
 
   const SkBitmap& bitmap = representation.sk_bitmap();
   return ComputeAverageColor(bitmap);
 }
@@ skipping 63 matching lines @@
 
     // Allow policy fetches to fail - these tests instead invoke InjectPolicy()
     // to directly inject and modify policy dynamically.
     command_line->AppendSwitch(switches::kAllowFailedPolicyFetchForTest);
 
     LoginManagerTest::SetUpCommandLine(command_line);
   }
 
   void SetUpOnMainThread() override {
     LoginManagerTest::SetUpOnMainThread();
-    ash::Shell::GetInstance()->wallpaper_controller()->AddObserver(this);
+    ash::WmShell::Get()->wallpaper_controller()->AddObserver(this);
 
     // Set up policy signing.
     user_policy_builders_[0] = GetUserPolicyBuilder(testUsers_[0]);
     user_policy_builders_[1] = GetUserPolicyBuilder(testUsers_[1]);
   }
 
   void TearDownOnMainThread() override {
-    ash::Shell::GetInstance()->wallpaper_controller()->RemoveObserver(this);
+    ash::WmShell::Get()->wallpaper_controller()->RemoveObserver(this);
     LoginManagerTest::TearDownOnMainThread();
   }
 
   // ash::WallpaperControllerObserver:
   void OnWallpaperDataChanged() override {
     ++wallpaper_change_count_;
     if (run_loop_)
       run_loop_->Quit();
   }
 
@@ skipping 193 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(WallpaperManagerPolicyTest, PersistOverLogout) {
   LoginUser(testUsers_[0].GetUserEmail());
 
   // Wait until wallpaper has been loaded.
   RunUntilWallpaperChangeCount(1);
   ASSERT_EQ(kRedImageColor, GetAverageWallpaperColor());
 }
 
 }  // namespace chromeos