arc: Use GET_INTERFACE_FOR_METHOD macro

chrome/browser/chromeos/arc/wallpaper/arc_wallpaper_service.cc

 // Copyright 2016 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/chromeos/arc/wallpaper/arc_wallpaper_service.h"
 
 #include "ash/common/wallpaper/wallpaper_controller.h"
 #include "ash/common/wm_shell.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/task_runner_util.h"
 #include "chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h"
 #include "components/arc/arc_bridge_service.h"
 #include "components/signin/core/account_id/account_id.h"
 #include "components/user_manager/user_manager.h"
 #include "components/wallpaper/wallpaper_files_id.h"
 #include "components/wallpaper/wallpaper_layout.h"
 #include "content/public/browser/browser_thread.h"
 #include "ui/gfx/codec/png_codec.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/image/image_util.h"
 
 using user_manager::UserManager;
 
 namespace arc {
 
 namespace {
 
-constexpr uint32_t kMinOnWallpaperChangedVersion = 1;
 constexpr char kAndroidWallpaperFilename[] = "android.jpg";
 
 // Sets a decoded bitmap as the wallpaper.
 void SetBitmapAsWallpaper(const SkBitmap& bitmap) {
   // Make the SkBitmap immutable as we won't modify it. This is important
   // because otherwise it gets duplicated during painting, wasting memory.
   SkBitmap immutable_bitmap(bitmap);
   immutable_bitmap.setImmutable();
   gfx::ImageSkia image = gfx::ImageSkia::CreateFrom1xBitmap(immutable_bitmap);
   image.MakeThreadSafe();
@@ skipping 46 matching lines @@
   ImageDecoder::Cancel(this);
   ash::WallpaperController* wc = GetWallpaperController();
   if (wc)
     wc->RemoveObserver(this);
   arc_bridge_service()->wallpaper()->RemoveObserver(this);
 }
 
 void ArcWallpaperService::OnInstanceReady() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   mojom::WallpaperInstance* wallpaper_instance =
-      arc_bridge_service()->wallpaper()->GetInstanceForMethod("Init");
+      GET_INSTANCE_FOR_METHOD(arc_bridge_service()->wallpaper(), Init);
   DCHECK(wallpaper_instance);
   wallpaper_instance->Init(binding_.CreateInterfacePtrAndBind());
   ash::WmShell::Get()->wallpaper_controller()->AddObserver(this);
 }
 
 void ArcWallpaperService::OnInstanceClosed() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   ash::WallpaperController* wc = GetWallpaperController();
   if (wc)
     wc->RemoveObserver(this);
@@ skipping 19 matching lines @@
   SetBitmapAsWallpaper(bitmap);
 }
 
 void ArcWallpaperService::OnDecodeImageFailed() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   LOG(ERROR) << "Failed to decode wallpaper image.";
 }
 
 void ArcWallpaperService::OnWallpaperDataChanged() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
-  auto* wallpaper_instance =
-      arc_bridge_service()->wallpaper()->GetInstanceForMethod(
-          "OnWallpaperChanged", kMinOnWallpaperChangedVersion);
+  auto* wallpaper_instance = GET_INSTANCE_FOR_METHOD(
+      arc_bridge_service()->wallpaper(), OnWallpaperChanged);
   if (!wallpaper_instance)
     return;
   wallpaper_instance->OnWallpaperChanged();
 }
 
 }  // namespace arc