Implemented StructTraits for cc::CopyOutputRequest

cc/output/copy_output_request.cc

Index: cc/output/copy_output_request.cc
diff --git a/cc/output/copy_output_request.cc b/cc/output/copy_output_request.cc
index 64ada7f63c8c30ae699c41e3703c697eb49db77b..4f1f4263d600dbd880ed8323020e82746ffb4f6b 100644
--- a/cc/output/copy_output_request.cc
+++ b/cc/output/copy_output_request.cc
@@ -20,24 +20,17 @@ std::unique_ptr<CopyOutputRequest> CopyOutputRequest::CreateRelayRequest(
     const CopyOutputRequestCallback& result_callback) {
   std::unique_ptr<CopyOutputRequest> relay = CreateRequest(result_callback);
   relay->force_bitmap_result_ = original_request.force_bitmap_result_;
-  relay->has_area_ = original_request.has_area_;
   relay->area_ = original_request.area_;
-  relay->has_texture_mailbox_ = original_request.has_texture_mailbox_;
   relay->texture_mailbox_ = original_request.texture_mailbox_;
   return relay;
 }
 
-CopyOutputRequest::CopyOutputRequest()
-    : force_bitmap_result_(false),
-      has_area_(false),
-      has_texture_mailbox_(false) {}
+CopyOutputRequest::CopyOutputRequest() : force_bitmap_result_(false) {}
 
 CopyOutputRequest::CopyOutputRequest(
     bool force_bitmap_result,
     const CopyOutputRequestCallback& result_callback)
     : force_bitmap_result_(force_bitmap_result),
-      has_area_(false),
-      has_texture_mailbox_(false),
       result_callback_(result_callback) {
   DCHECK(!result_callback_.is_null());
   TRACE_EVENT_ASYNC_BEGIN0("cc", "CopyOutputRequest", this);
@@ -75,7 +68,6 @@ void CopyOutputRequest::SetTextureMailbox(
     const TextureMailbox& texture_mailbox) {
   DCHECK(!force_bitmap_result_);
   DCHECK(texture_mailbox.IsTexture());
-  has_texture_mailbox_ = true;
   texture_mailbox_ = texture_mailbox;
 }