Getting rid of ChromeLauncherController::model().

chrome/browser/ui/ash/launcher/browser_shortcut_launcher_item_controller.h

Index: chrome/browser/ui/ash/launcher/browser_shortcut_launcher_item_controller.h
diff --git a/chrome/browser/ui/ash/launcher/browser_shortcut_launcher_item_controller.h b/chrome/browser/ui/ash/launcher/browser_shortcut_launcher_item_controller.h
index f6cd262d54a3f7a11450801bd801588732fb72a1..1c13bc461fe084bd9697967630001bf705670747 100644
--- a/chrome/browser/ui/ash/launcher/browser_shortcut_launcher_item_controller.h
+++ b/chrome/browser/ui/ash/launcher/browser_shortcut_launcher_item_controller.h
@@ -9,6 +9,10 @@
 #include "chrome/browser/ui/ash/launcher/launcher_item_controller.h"
 #include "chrome/browser/ui/browser_list.h"
 
+namespace ash {
+class ShelfModel;
+}
+
 namespace content {
 class WebContents;
 }
@@ -23,8 +27,8 @@ class ChromeLauncherController;
 // Item controller for an browser shortcut.
 class BrowserShortcutLauncherItemController : public LauncherItemController {
  public:
-  explicit BrowserShortcutLauncherItemController(
-      ChromeLauncherController* controller);
+  BrowserShortcutLauncherItemController(ChromeLauncherController* controller,
+                                        ash::ShelfModel* shelf_model);
 
   ~BrowserShortcutLauncherItemController() override;
 
@@ -78,6 +82,8 @@ class BrowserShortcutLauncherItemController : public LauncherItemController {
   // Get a list of active browsers.
   BrowserList::BrowserVector GetListOfActiveBrowsers();
 
+  ash::ShelfModel* shelf_model_;
+
   DISALLOW_COPY_AND_ASSIGN(BrowserShortcutLauncherItemController);
 };