Add more out of line copy ctors for complex classes.

content/browser/gpu/gpu_process_host.cc

 // 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 "content/browser/gpu/gpu_process_host.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 367 matching lines @@
               &SendGpuProcessMessage, kind, cause, message))) {
     delete message;
   }
 }
 
 GpuMainThreadFactoryFunction g_gpu_main_thread_factory = NULL;
 
 GpuProcessHost::EstablishChannelRequest::EstablishChannelRequest()
     : client_id(0) {}
 
+GpuProcessHost::EstablishChannelRequest::EstablishChannelRequest(
+    const EstablishChannelRequest& other) = default;
+
 GpuProcessHost::EstablishChannelRequest::~EstablishChannelRequest() {}
 
 void GpuProcessHost::RegisterGpuMainThreadFactory(
     GpuMainThreadFactoryFunction create) {
   g_gpu_main_thread_factory = create;
 }
 
 // static
 GpuProcessHost* GpuProcessHost::FromID(int host_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
@@ skipping 766 matching lines @@
   TRACE_EVENT0("gpu", "GpuProcessHost::OnCacheShader");
   ClientIdToShaderCacheMap::iterator iter =
       client_id_to_shader_cache_.find(client_id);
   // If the cache doesn't exist then this is an off the record profile.
   if (iter == client_id_to_shader_cache_.end())
     return;
   iter->second->Cache(GetShaderPrefixKey() + ":" + key, shader);
 }
 
 }  // namespace content