Rewire Android WebView's compositor changed signal.

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 50 matching lines @@
 }
 
 SynchronousCompositorHost::SynchronousCompositorHost(
     RenderWidgetHostViewAndroid* rwhva,
     SynchronousCompositorClient* client,
     bool use_in_proc_software_draw)
     : rwhva_(rwhva),
       client_(client),
       ui_task_runner_(
           BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI)),
+      process_id_(rwhva_->GetRenderWidgetHost()->GetProcess()->GetID()),
       routing_id_(rwhva_->GetRenderWidgetHost()->GetRoutingID()),
       sender_(rwhva_->GetRenderWidgetHost()),
       use_in_process_zero_copy_software_draw_(use_in_proc_software_draw),
       bytes_limit_(0u),
       renderer_param_version_(0u),
       need_animate_scroll_(false),
       need_invalidate_count_(0u),
       did_activate_pending_tree_count_(0u) {
-  client_->DidInitializeCompositor(this);
+  client_->DidInitializeCompositor(this, process_id_, routing_id_);
 }
 
 SynchronousCompositorHost::~SynchronousCompositorHost() {
-  client_->DidDestroyCompositor(this);
+  client_->DidDestroyCompositor(this, process_id_, routing_id_);
 }
 
 bool SynchronousCompositorHost::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(SynchronousCompositorHost, message)
     IPC_MESSAGE_HANDLER(SyncCompositorHostMsg_OutputSurfaceCreated,
                         OutputSurfaceCreated)
     IPC_MESSAGE_HANDLER(SyncCompositorHostMsg_UpdateState, ProcessCommonParams)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
-void SynchronousCompositorHost::DidBecomeCurrent() {
-  client_->DidBecomeCurrent(this);
-}
-
 SynchronousCompositor::Frame SynchronousCompositorHost::DemandDrawHw(
     const gfx::Size& surface_size,
     const gfx::Transform& transform,
     const gfx::Rect& viewport,
     const gfx::Rect& clip,
     const gfx::Rect& viewport_rect_for_tile_priority,
     const gfx::Transform& transform_for_tile_priority) {
   SyncCompositorDemandDrawHwParams params(surface_size, transform, viewport,
                                           clip, viewport_rect_for_tile_priority,
                                           transform_for_tile_priority);
@@ skipping 275 matching lines @@
   if (params.page_scale_factor) {
     client_->UpdateRootLayerState(
         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