Define parameter structs of resource messages out of resource_messages.h

content/common/resource_request.cc

Index: content/common/resource_request.cc
diff --git a/content/public/gpu/content_gpu_client.cc b/content/common/resource_request.cc
similarity index 51%
copy from content/public/gpu/content_gpu_client.cc
copy to content/common/resource_request.cc
index c2a8eacc3c51547a6b99d409e6c43c316feadb6b..54f45983d2476a9e16e2e49a3bd827d4967c84cc 100644
--- a/content/public/gpu/content_gpu_client.cc
+++ b/content/common/resource_request.cc
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/public/gpu/content_gpu_client.h"
+#include "content/common/resource_request.h"
 
 namespace content {
 
-gpu::SyncPointManager* ContentGpuClient::GetSyncPointManager() {
-  return nullptr;
-}
+ResourceRequest::ResourceRequest() {}
+ResourceRequest::ResourceRequest(const ResourceRequest& request) = default;
+ResourceRequest::~ResourceRequest() {}
 
 }  // namespace content