arc: IPC method to set custom wallpaper.

chrome/browser/chromeos/arc/arc_service_launcher.cc

Index: chrome/browser/chromeos/arc/arc_service_launcher.cc
diff --git a/chrome/browser/chromeos/arc/arc_service_launcher.cc b/chrome/browser/chromeos/arc/arc_service_launcher.cc
index 4499c8a4489e4f946330d42619c84b7e1d94be35..de4d9c8f9bf199a1fe05ec5f585cf37641e82b77 100644
--- a/chrome/browser/chromeos/arc/arc_service_launcher.cc
+++ b/chrome/browser/chromeos/arc/arc_service_launcher.cc
@@ -11,10 +11,12 @@
 #include "chrome/browser/chromeos/arc/arc_policy_bridge.h"
 #include "chrome/browser/chromeos/arc/arc_process_service.h"
 #include "chrome/browser/chromeos/arc/arc_settings_service.h"
+#include "chrome/browser/chromeos/arc/arc_wallpaper_handler.h"
 #include "chrome/browser/chromeos/arc/gpu_arc_video_service_host.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/session_manager_client.h"
 #include "components/arc/arc_bridge_service.h"
+#include "components/arc/intent_helper/arc_intent_helper_bridge.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace arc {
@@ -28,6 +30,11 @@ void ArcServiceLauncher::Initialize() {
   arc_service_manager_.reset(
       new ArcServiceManager(content::BrowserThread::GetBlockingPool()));
   arc_service_manager_->AddService(base::WrapUnique(
+      new ArcIntentHelperBridge(arc_service_manager_->arc_bridge_service(),
+                                arc_service_manager_->icon_loader(),
+                                content::BrowserThread::GetBlockingPool(),

[hidehiko, 2016/06/14 13:44:16]

Why not sharing the pool with arc_service_manager?

[Shuhei Takahashi, 2016/06/14 14:08:39]

It is a shared pool so every call to GetBlockingPool() will return the same
instance:

https://cs.chromium.org/chromium/src/content/browser/browser_thread_impl.cc?s...

+                                base::WrapUnique(new ArcWallpaperHandler()))));
+  arc_service_manager_->AddService(base::WrapUnique(
       new ArcAuthService(arc_service_manager_->arc_bridge_service())));
   arc_service_manager_->AddService(
       base::WrapUnique(new ArcDownloadsWatcherService(