Adding ChromeLauncherController interface.

chrome/browser/ui/ash/launcher/arc_app_window_launcher_controller.cc

Index: chrome/browser/ui/ash/launcher/arc_app_window_launcher_controller.cc
diff --git a/chrome/browser/ui/ash/launcher/arc_app_window_launcher_controller.cc b/chrome/browser/ui/ash/launcher/arc_app_window_launcher_controller.cc
index 83ab910fa88a8a5324d7507802deb9385475beaa..7951fd6039cdde8f4d5c0ca31d26775b6b591b9f 100644
--- a/chrome/browser/ui/ash/launcher/arc_app_window_launcher_controller.cc
+++ b/chrome/browser/ui/ash/launcher/arc_app_window_launcher_controller.cc
@@ -4,6 +4,7 @@
 #include "chrome/browser/ui/ash/launcher/arc_app_window_launcher_controller.h"
 
 #include "ash/common/wm/window_state.h"
+#include "ash/shelf/shelf_delegate.h"
 #include "ash/shelf/shelf_util.h"
 #include "ash/wm/window_state_aura.h"
 #include "ash/wm/window_util.h"
@@ -186,10 +187,11 @@ class ArcAppWindowLauncherController::AppWindow : public ui::BaseWindow {
 };
 
 ArcAppWindowLauncherController::ArcAppWindowLauncherController(
-    ChromeLauncherController* owner)
-    : AppWindowLauncherController(owner) {
-  if (arc::ArcAuthService::IsAllowedForProfile(owner->profile())) {
-    observed_profile_ = owner->profile();
+    ChromeLauncherController* owner,
+    ash::ShelfDelegate* shelf_delegate)
+    : AppWindowLauncherController(owner), shelf_delegate_(shelf_delegate) {
+  if (arc::ArcAuthService::IsAllowedForProfile(owner->GetProfile())) {
+    observed_profile_ = owner->GetProfile();
     StartObserving(observed_profile_);
   }
 }
@@ -334,7 +336,7 @@ void ArcAppWindowLauncherController::OnTaskDestroyed(int task_id) {
 }
 
 void ArcAppWindowLauncherController::OnTaskSetActive(int32_t task_id) {
-  if (observed_profile_ != owner()->profile())
+  if (observed_profile_ != owner()->GetProfile())
     return;
 
   TaskIdToAppWindow::iterator previous_active_app_it =
@@ -425,7 +427,7 @@ void ArcAppWindowLauncherController::RegisterApp(AppWindow* app_window) {
     shelf_id = controller->shelf_id();
   } else {
     controller = new ArcAppWindowLauncherItemController(app_id, owner());
-    shelf_id = owner()->GetShelfIDForAppID(app_id);
+    shelf_id = shelf_delegate_->GetShelfIDForAppID(app_id);

[msw, 2016/06/10 22:44:38]

nit: just call ash::Shell::GetInstance()->GetShelfDelegate() here and remove the
|shelf_delegate_| member?

[mfomitchev, 2016/06/10 23:29:09]

This is not so simple because of the unit tests - see the response to the
comment int launcher_context_menu.cc. If I change this, some tests will start
failing.

[msw, 2016/06/10 23:42:51]

Acknowledged.

     if (shelf_id == 0) {
       // Map Play Store shelf icon to Arc Support host, to share one entry.
       shelf_id = owner()->CreateAppLauncherItem(controller, app_id,