Cleanup: Remove unneeded browser_thread.h includes.

chrome/browser/storage_monitor/image_capture_device_manager.mm

 // Copyright (c) 2012 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 "chrome/browser/storage_monitor/image_capture_device_manager.h"
 
 #import <ImageCaptureCore/ImageCaptureCore.h>
 
 #import "chrome/browser/storage_monitor/image_capture_device.h"
 #include "chrome/browser/storage_monitor/storage_info.h"
-#include "content/public/browser/browser_thread.h"
 
 namespace {
 
 ImageCaptureDeviceManager* g_image_capture_device_manager = NULL;
 
 }  // namespace
 
 // This class is the surface for the Mac ICDeviceBrowser ImageCaptureCore API.
 // Owned by the ChromeBrowserParts and has browser process lifetime. Upon
 // creation, it gets a list of attached media volumes (asynchronously) which
@@ skipping 135 matching lines @@
 ImageCaptureDevice* ImageCaptureDeviceManager::deviceForUUID(
     const std::string& uuid) {
   ImageCaptureDeviceManagerImpl* manager =
       g_image_capture_device_manager->device_browser_;
   return [manager deviceForUUID:uuid];
 }
 
 id<ICDeviceBrowserDelegate> ImageCaptureDeviceManager::device_browser() {
   return device_browser_.get();
 }