Add ArcNotificationManager for new ARC notification

chrome/browser/chromeos/chrome_browser_main_chromeos.cc

Index: chrome/browser/chromeos/chrome_browser_main_chromeos.cc
diff --git a/chrome/browser/chromeos/chrome_browser_main_chromeos.cc b/chrome/browser/chromeos/chrome_browser_main_chromeos.cc
index 33f04e40579d200af13601afef5a76be035a70e6..824c0d51e3da390682871eb18fab21e15851028a 100644
--- a/chrome/browser/chromeos/chrome_browser_main_chromeos.cc
+++ b/chrome/browser/chromeos/chrome_browser_main_chromeos.cc
@@ -77,6 +77,7 @@
 #include "chrome/browser/net/chrome_network_delegate.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/ui/ash/multi_user/multi_user_util.h"
 #include "chrome/browser/ui/ash/network_connect_delegate_chromeos.h"
 #include "chrome/common/channel_info.h"
 #include "chrome/common/chrome_constants.h"
@@ -641,6 +642,13 @@ void ChromeBrowserMainPartsChromeos::PostProfileInit() {
   // available.
   idle_action_warning_observer_.reset(new IdleActionWarningObserver());
 
+  if (arc::ArcBridgeService::GetEnabled(
+          base::CommandLine::ForCurrentProcess())) {
+    DCHECK(arc_service_manager_);
+    arc_service_manager_->PostProfileInit(
+        multi_user_util::GetAccountIdFromProfile(profile()));

[xiyuan, 2015/12/21 22:56:36]

IIRC, this code path is usually executed on the login screen (except for the
browser restart case). The profile() is most likely to be the signin profile
thus would not give your the correct AccountId for user.

Have you tried with "--login-manager" or on a real device? On dev box, the
default is to run with a stub user so the code here may look like giving you a
user profile but that is not the case on real devices.

If you need user profile, maybe we can add the code to
UserSessionManager::FinalizePrepareProfile [1].

[1]
https://code.google.com/p/chromium/codesearch#chromium/src/chrome/browser/chr...

[yoshiki, 2015/12/22 10:13:53]

I checked that the previous code (hooking is in PostProfileInit) worked well in
the real device. But what I want is the primary user profile, so I move the code
to the login manager. Thanks.

[xiyuan, 2015/12/22 16:10:17]

Interesting. That means the AccountId of profile is probably not really used
since it would be always empty for signin profile. 

+  }
+
   ChromeBrowserMainPartsLinux::PostProfileInit();
 }