Remove an unnecessary CachedMetadata copy in URLLoaderClientImpl

content/common/resource_messages.h

 // 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.
 
 // IPC messages for resource loading.
 //
 // NOTE: All messages must send an |int request_id| as their first parameter.
 
 // Multiply-included message file, hence no include guard.
 
@@ skipping 261 matching lines @@
 // Resource messages sent from the browser to the renderer.
 
 // Sent when the headers are available for a resource request.
 IPC_MESSAGE_CONTROL2(ResourceMsg_ReceivedResponse,
                      int /* request_id */,
                      content::ResourceResponseHead)
 
 // Sent when cached metadata from a resource request is ready.
 IPC_MESSAGE_CONTROL2(ResourceMsg_ReceivedCachedMetadata,
                      int /* request_id */,
-                     std::vector<char> /* data */)
+                     std::vector<uint8_t> /* data */)
 
 // Sent as upload progress is being made.
 IPC_MESSAGE_CONTROL3(ResourceMsg_UploadProgress,
                      int /* request_id */,
                      int64_t /* position */,
                      int64_t /* size */)
 
 // Sent when the request has been redirected.  The receiver is expected to
 // respond with either a FollowRedirect message (if the redirect is to be
 // followed) or a CancelRequest message (if it should not be followed).
@@ skipping 76 matching lines @@
 
 // Sent when the renderer process deletes a resource loader.
 IPC_MESSAGE_CONTROL1(ResourceHostMsg_ReleaseDownloadedFile,
                      int /* request_id */)
 
 // Sent by the renderer when a resource request changes priority.
 IPC_MESSAGE_CONTROL3(ResourceHostMsg_DidChangePriority,
                      int /* request_id */,
                      net::RequestPriority,
                      int /* intra_priority_value */)