Fix issue that camera app don't launch with Play Store ToS

This CL fix the issue that Camera App don't launch when Play Store ToS
dialog is shown. Now GCA will only be launched when it is ready. Otherwise,
just fallback to launch CCA.

BUG=b/119152926
TEST=Tested by enabling/disabling Google Play Store in Settings App and it works as expectation.

Change-Id: I51c0a80a3eb6160429b98d40adaf5c56e28d6b61
Reviewed-on: https://chromium-review.googlesource.com/c/1339089Reviewed-by: Hidehiko Abe <hidehiko@chromium.org>
Reviewed-by: Yury Khmel <khmel@chromium.org>
Reviewed-by: Tao Wu <wutao@chromium.org>
Commit-Queue: Wei Lee <wtlee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610300}

chrome/browser/ui/app_list/internal_app/internal_app_metadata.cc

@@ -19,6 +19,7 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/session_sync_service_factory.h"
 #include "chrome/browser/ui/app_list/app_list_client_impl.h"
+#include "chrome/browser/ui/app_list/arc/arc_app_list_prefs.h"
 #include "chrome/browser/ui/app_list/arc/arc_app_utils.h"
 #include "chrome/browser/ui/ash/ksv/keyboard_shortcut_viewer_util.h"
 #include "chrome/browser/ui/chrome_pages.h"
@@ -238,15 +239,20 @@ void OnArcFeaturesRead(Profile* profile,
       registry->GetInstalledExtension(chrome_app_id);
 
   bool arc_enabled = arc::IsArcPlayStoreEnabledForProfile(profile);
+  bool is_android_camera_app_registered =
+      arc_enabled &&
+      ArcAppListPrefs::Get(profile)->IsRegistered(kAndroidCameraAppId);
   bool chrome_camera_migrated =
       profile->GetPrefs()->GetBoolean(prefs::kCameraMediaConsolidated);
 
   VLOG(1) << "Launching camera app. arc_enabled = " << arc_enabled
+          << " is_android_camera_app_registered = "
+          << is_android_camera_app_registered
           << " arc_p_or_above = " << arc_p_or_above
           << " chrome_camera_migrated = " << chrome_camera_migrated
           << " cca_exist = " << (extension != nullptr);
-
-  if (arc_enabled && arc_p_or_above && (!extension || chrome_camera_migrated)) {
+  if (arc_p_or_above && is_android_camera_app_registered &&
+      (!extension || chrome_camera_migrated)) {
     // Open Google camera app or GCA migration app according to GCA
     // migration system property.
     arc::ArcPropertyBridge* property =