Move resource_loader_bridge.* from webkit/child to content/child.

webkit/child/resource_loader_bridge.h

-// Copyright 2014 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.
-//
-// The intent of this file is to provide a type-neutral abstraction between
-// Chrome and WebKit for resource loading. This pure-virtual interface is
-// implemented by the embedder.
-//
-// One of these objects will be created by WebKit for each request. WebKit
-// will own the pointer to the bridge, and will delete it when the request is
-// no longer needed.
-//
-// In turn, the bridge's owner on the WebKit end will implement the
-// RequestPeer interface, which we will use to communicate notifications
-// back.
-
-#ifndef WEBKIT_CHILD_RESOURCE_LOADER_BRIDGE_H_
-#define WEBKIT_CHILD_RESOURCE_LOADER_BRIDGE_H_
-
-#include "base/macros.h"
-#include "net/base/request_priority.h"
-#include "webkit/child/webkit_child_export.h"
-
-namespace blink {
-class WebThreadedDataReceiver;
-}
-
-// TODO(pilgrim) remove this once resource loader is moved to content
-// http://crbug.com/338338
-namespace content {
-class RequestPeer;
-class ResourceRequestBody;
-struct SyncLoadResponse;
-}
-
-namespace webkit_glue {
-
-class ResourceLoaderBridge {
- public:
-  // use WebKitPlatformSupportImpl::CreateResourceLoader() for construction, but
-  // anybody can delete at any time, INCLUDING during processing of callbacks.
-  WEBKIT_CHILD_EXPORT virtual ~ResourceLoaderBridge();
-
-  // Call this method before calling Start() to set the request body.
-  // May only be used with HTTP(S) POST requests.
-  virtual void SetRequestBody(content::ResourceRequestBody* request_body) = 0;
-
-  // Call this method to initiate the request.  If this method succeeds, then
-  // the peer's methods will be called asynchronously to report various events.
-  virtual bool Start(content::RequestPeer* peer) = 0;
-
-  // Call this method to cancel a request that is in progress.  This method
-  // causes the request to immediately transition into the 'done' state. The
-  // OnCompletedRequest method will be called asynchronously; this assumes
-  // the peer is still valid.
-  virtual void Cancel() = 0;
-
-  // Call this method to suspend or resume a load that is in progress.  This
-  // method may only be called after a successful call to the Start method.
-  virtual void SetDefersLoading(bool value) = 0;
-
-  // Call this method when the priority of the requested resource changes after
-  // Start() has been called.  This method may only be called after a successful
-  // call to the Start method.
-  virtual void DidChangePriority(net::RequestPriority new_priority,
-                                 int intra_priority_value) = 0;
-
-  // Call this method to attach a data receiver which will receive resource data
-  // on its own thread.
-  virtual bool AttachThreadedDataReceiver(
-      blink::WebThreadedDataReceiver* threaded_data_receiver) = 0;
-
-  // Call this method to load the resource synchronously (i.e., in one shot).
-  // This is an alternative to the Start method.  Be warned that this method
-  // will block the calling thread until the resource is fully downloaded or an
-  // error occurs.  It could block the calling thread for a long time, so only
-  // use this if you really need it!  There is also no way for the caller to
-  // interrupt this method.  Errors are reported via the status field of the
-  // response parameter.
-  virtual void SyncLoad(content::SyncLoadResponse* response) = 0;
-
- protected:
-  // Construction must go through
-  // WebKitPlatformSupportImpl::CreateResourceLoader()
-  // For HTTP(S) POST requests, the AppendDataToUpload and AppendFileToUpload
-  // methods may be called to construct the body of the request.
-  WEBKIT_CHILD_EXPORT ResourceLoaderBridge();
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(ResourceLoaderBridge);
-};
-
-}  // namespace webkit_glue
-
-#endif  // WEBKIT_CHILD_RESOURCE_LOADER_BRIDGE_H_