Refactor LauncherDelegate

(This CL is splitted from https://codereview.chromium.org/11513005/ prior to adding LauncherItem for dialog)

Refactor LauncherItem bits in LauncherDelegate into LauncherItemDelegate.
LauncherItemDelegateManager helps Launcher/LauncherView to choose right LauncherItemDelegate based on LauncherItemType.

* AppListLauncherItemDelegate is added for TYPE_APP_LIST.
* LauncherItemManager (subclass of LauncherItemDelegate) will be added for TYPE_DIALOG in the separate CL.

R=sky@chromium.org, skuhne@chromium.org
BUG=121242, 279105
TEST=browser_tests, unit_tests, ash_unittests

Review URL: https://chromiumcodereview.appspot.com/22429004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@219924 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 9 insertions, 0 deletions

diff --git a/ash/shell.h b/ash/shell.h
index 5068815..718d1f8 100644
--- a/ash/shell.h
+++ b/ash/shell.h
@@ -75,6 +75,7 @@ class DisplayController;
 class HighContrastController;
 class Launcher;
 class LauncherDelegate;
+class LauncherItemDelegateManager;
 class LauncherModel;
 class MagnificationController;
 class MruWindowTracker;
@@ -101,6 +102,7 @@ namespace internal {
 class AcceleratorFilter;
 class ActivationController;
 class AppListController;
+class AppListLauncherItemDelegate;
 class CaptureController;
 class DisplayChangeObserver;
 class DisplayErrorObserver;
@@ -366,6 +368,10 @@ class ASH_EXPORT Shell
     return activation_client_;
   }
 
+  LauncherItemDelegateManager* launcher_item_delegate_manager() {
+    return launcher_item_delegate_manager_.get();
+  }
+
   ScreenAsh* screen() { return screen_; }
 
   // Force the shelf to query for it's current visibility state.
@@ -541,6 +547,9 @@ class ASH_EXPORT Shell
   scoped_ptr<CapsLockDelegate> caps_lock_delegate_;
   scoped_ptr<SessionStateDelegate> session_state_delegate_;
   scoped_ptr<LauncherDelegate> launcher_delegate_;
+  scoped_ptr<LauncherItemDelegateManager> launcher_item_delegate_manager_;
+  scoped_ptr<internal::AppListLauncherItemDelegate>
+      app_list_launcher_item_delegate_;
 
   scoped_ptr<LauncherModel> launcher_model_;