cc: Add checker-imaging support to TileManager.

cc/trees/proxy_impl.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 "cc/trees/proxy_impl.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/auto_reset.h"
@@ skipping 414 matching lines @@
   MainThreadTaskRunner()->PostTask(
       FROM_HERE, base::Bind(&ProxyMain::DidCompletePageScaleAnimation,
                             proxy_main_weak_ptr_));
 }
 
 void ProxyImpl::OnDrawForCompositorFrameSink(bool resourceless_software_draw) {
   DCHECK(IsImplThread());
   scheduler_->OnDrawForCompositorFrameSink(resourceless_software_draw);
 }
 
+void ProxyImpl::NeedsImplSideInvalidation() {
+  DCHECK(IsImplThread());
+  NOTIMPLEMENTED();

[enne (OOO), 2017/02/16 21:41:32]

Can you leave a TODO with your name on it here and in single thread proxy, so
folks know that this is "in progress" and not "never to be implemented"?

[Khushal, 2017/02/17 19:05:38]

Done.

+}
+
 void ProxyImpl::WillBeginImplFrame(const BeginFrameArgs& args) {
   DCHECK(IsImplThread());
   layer_tree_host_impl_->WillBeginImplFrame(args);
 }
 
 void ProxyImpl::DidFinishImplFrame() {
   DCHECK(IsImplThread());
   layer_tree_host_impl_->DidFinishImplFrame();
 }
 
@@ skipping 183 matching lines @@
 ProxyImpl::BlockedMainCommitOnly& ProxyImpl::blocked_main_commit() {
   DCHECK(IsMainThreadBlocked() && commit_completion_event_);
   return main_thread_blocked_commit_vars_unsafe_;
 }
 
 base::SingleThreadTaskRunner* ProxyImpl::MainThreadTaskRunner() {
   return task_runner_provider_->MainThreadTaskRunner();
 }
 
 }  // namespace cc