Move ownership of the AppListViewDelegate into the AppListService

ui/app_list/cocoa/app_list_view_controller.mm

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ui/app_list/cocoa/app_list_view_controller.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/mac/mac_util.h"
 #include "base/strings/string_util.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 136 matching lines @@
 
 - (NSSegmentedControl*)pagerControl {
   return pagerControl_;
 }
 
 - (NSView*)backgroundView {
   return backgroundView_;
 }
 
 - (app_list::AppListViewDelegate*)delegate {
-  return delegate_.get();
+  return delegate_;
 }
 
-- (void)setDelegate:(scoped_ptr<app_list::AppListViewDelegate>)newDelegate {
+- (void)setDelegate:(app_list::AppListViewDelegate*)newDelegate {
   if (delegate_) {
     // Ensure the search box is cleared when switching profiles.
     if ([self searchBoxModel])
       [self searchBoxModel]->SetText(base::string16());
 
     // First clean up, in reverse order.
     app_list_model_observer_bridge_.reset();
     [appsSearchResultsController_ setDelegate:nil];
     [appsSearchBoxController_ setDelegate:nil];
     [appsGridController_ setDelegate:nil];
   }
-  delegate_.reset(newDelegate.release());
+  delegate_ = newDelegate;
   if (delegate_) {
     [loadingIndicator_ stopAnimation:self];
   } else {
     [loadingIndicator_ startAnimation:self];
     return;
   }
 
-  [appsGridController_ setDelegate:delegate_.get()];
+  [appsGridController_ setDelegate:delegate_];
   [appsSearchBoxController_ setDelegate:self];
   [appsSearchResultsController_ setDelegate:self];
   app_list_model_observer_bridge_.reset(
       new app_list::AppListModelObserverBridge(self));
   [self onProfilesChanged];
 }
 
 -(void)loadAndSetView {
   pagerControl_.reset([[AppListPagerView alloc] init]);
   [pagerControl_ setTarget:appsGridController_];
@@ skipping 167 matching lines @@
 
 - (void)redoSearch {
   [self modelTextDidChange];
 }
 
 - (void)onProfilesChanged {
   [appsSearchBoxController_ rebuildMenu];
 }
 
 @end