Added FrameFuture class

content/browser/android/synchronous_compositor_host.cc

 // Copyright 2015 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/android/synchronous_compositor_host.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/containers/hash_tables.h"
@@ skipping 120 matching lines @@
                               std::move(compositor_frame));
 }
 
 bool SynchronousCompositorHost::DemandDrawHwReceiveFrame(
     const IPC::Message& message) {
   SyncCompositorHostMsg_ReturnFrame::Param param;
   if (!SyncCompositorHostMsg_ReturnFrame::Read(&message, &param))
     return false;
   uint32_t compositor_frame_sink_id = std::get<0>(param);
   cc::CompositorFrame compositor_frame = std::move(std::get<1>(param));
-  client_->OnDrawHardwareProcessFrame(ProcessHardwareFrame(
-      compositor_frame_sink_id, std::move(compositor_frame)));
+  scoped_refptr<SynchronousCompositor::FrameFuture> frame_future =
+      new FrameFuture();
+  SynchronousCompositor::Frame frame = ProcessHardwareFrame(
+      compositor_frame_sink_id, std::move(compositor_frame));
+  if (!frame.frame)
+    return true;
+  std::unique_ptr<SynchronousCompositor::Frame> frame_ptr =
+      base::MakeUnique<SynchronousCompositor::Frame>();
+  frame_ptr->frame = std::move(frame.frame);
+  frame_ptr->compositor_frame_sink_id = frame.compositor_frame_sink_id;
+  frame_future->setFrame(std::move(frame_ptr));
+  client_->OnDrawHardwareProcessFrameFuture(std::move(frame_future));
   return true;
 }
 
 SynchronousCompositor::Frame SynchronousCompositorHost::ProcessHardwareFrame(
     uint32_t compositor_frame_sink_id,
     cc::CompositorFrame compositor_frame) {
   SynchronousCompositor::Frame frame;
   frame.frame.reset(new cc::CompositorFrame);
   frame.compositor_frame_sink_id = compositor_frame_sink_id;
   *frame.frame = std::move(compositor_frame);
@@ skipping 262 matching lines @@
   if (params.page_scale_factor) {
     client_->UpdateRootLayerState(
         this, gfx::ScrollOffsetToVector2dF(params.total_scroll_offset),
         gfx::ScrollOffsetToVector2dF(params.max_scroll_offset),
         params.scrollable_size, params.page_scale_factor,
         params.min_page_scale_factor, params.max_page_scale_factor);
   }
 }
 
 }  // namespace content