Fix a bunch of clang warnings/errors.

chrome/browser/renderer_host/render_widget_host_view_mac.mm

 // Copyright (c) 2010 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.
 
 #include <QuartzCore/QuartzCore.h>
 
 #include "chrome/browser/renderer_host/render_widget_host_view_mac.h"
 
 #include "chrome/browser/chrome_thread.h"
 #include "app/surface/io_surface_support_mac.h"
@@ skipping 829 matching lines @@
 }
 
 gfx::PluginWindowHandle
 RenderWidgetHostViewMac::AllocateFakePluginWindowHandle(bool opaque,
                                                         bool root) {
   CHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
   // Create an NSView to host the plugin's/compositor's pixels.
   gfx::PluginWindowHandle handle =
       plugin_container_manager_.AllocateFakePluginWindowHandle(opaque, root);
 
-  scoped_nsobject<NSView> plugin_view(
+  scoped_nsobject<AcceleratedPluginView> plugin_view(
       [[AcceleratedPluginView alloc] initWithRenderWidgetHostViewMac:this
                                                         pluginHandle:handle]);
   [plugin_view setHidden:YES];
 
   [cocoa_view_ addSubview:plugin_view];
   plugin_views_[handle] = plugin_view;
 
   return handle;
 }
 
@@ skipping 1578 matching lines @@
   if (!string) return NO;
 
   // If the user is currently using an IME, confirm the IME input,
   // and then insert the text from the service, the same as TextEdit and Safari.
   [self confirmComposition];
   [self insertText:string];
   return YES;
 }
 
 @end