Create Content API around HostZoomMap.

content/browser/resource_context.h

 // Copyright (c) 2011 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.
 
 #ifndef CONTENT_BROWSER_RESOURCE_CONTEXT_H_
 #define CONTENT_BROWSER_RESOURCE_CONTEXT_H_
 
 #include <map>
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/memory/ref_counted.h"
 #include "content/common/content_export.h"
 
 class AudioManager;
 class ChromeAppCacheService;
 class ChromeBlobStorageContext;
-class HostZoomMap;
 class MediaObserver;
 namespace fileapi {
 class FileSystemContext;
 }  // namespace fileapi
 namespace media_stream {
 class MediaStreamManager;
 }  // namespace media_stream
 namespace net {
 class HostResolver;
 class URLRequestContext;
 }  // namespace net
 namespace quota {
 class QuotaManager;
 };  // namespace quota
 namespace webkit_database {
 class DatabaseTracker;
 }  // namespace webkit_database
 
 namespace content {
 
+class HostZoomMap;
+
 // ResourceContext contains the relevant context information required for
 // resource loading. It lives on the IO thread, although it is constructed on
 // the UI thread. ResourceContext doesn't own anything it points to, it just
 // holds pointers to relevant objects to resource loading.
 class CONTENT_EXPORT ResourceContext {
  public:
   virtual ~ResourceContext();
 
   // The user data allows the clients to associate data with this request.
   // Multiple user data values can be stored under different keys.
@@ skipping 55 matching lines @@
   // Externally-defined data accessible by key.
   typedef std::map<const void*, void*> UserDataMap;
   UserDataMap user_data_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceContext);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RESOURCE_CONTEXT_H_