cc: Support on demand raster with ganesh

cc/output/direct_renderer.cc

 // Copyright 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 "cc/output/direct_renderer.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/containers/hash_tables.h"
@@ skipping 398 matching lines @@
                enlarge_pass_texture_amount_.y());
   if (!texture->id())
     texture->Allocate(
         size, ResourceProvider::TextureUsageFramebuffer, RGBA_8888);
   DCHECK(texture->id());
 
   return BindFramebufferToTexture(frame, texture, render_pass->output_rect);
 }
 
 void DirectRenderer::RunOnDemandRasterTask(Task* on_demand_raster_task) {
-  TaskGraphRunner* task_graph_runner = RasterWorkerPool::GetTaskGraphRunner();
-  DCHECK(task_graph_runner);
-
-  // Make sure we have a unique task namespace token.
-  if (!on_demand_task_namespace_.IsValid())
-    on_demand_task_namespace_ = task_graph_runner->GetNamespaceToken();
-
-  // Construct a task graph that contains this single raster task.
-  TaskGraph graph;
-  graph.nodes.push_back(
-      TaskGraph::Node(on_demand_raster_task,
-                      RasterWorkerPool::kOnDemandRasterTaskPriority,
-                      0u));
-
-  // Schedule task and wait for task graph runner to finish running it.
-  task_graph_runner->ScheduleTasks(on_demand_task_namespace_, &graph);
-  task_graph_runner->WaitForTasksToFinishRunning(on_demand_task_namespace_);
-
-  // Collect task now that it has finished running.
-  Task::Vector completed_tasks;
-  task_graph_runner->CollectCompletedTasks(on_demand_task_namespace_,
-                                           &completed_tasks);
-  DCHECK_EQ(1u, completed_tasks.size());
-  DCHECK_EQ(completed_tasks[0], on_demand_raster_task);
+  client_->RunOnDemandRasterTask(on_demand_raster_task);
 }
 
 bool DirectRenderer::HasAllocatedResourcesForTesting(RenderPass::Id id)
     const {
   ScopedResource* texture = render_pass_textures_.get(id);
   return texture && texture->id();
 }
 
 // static
 gfx::Size DirectRenderer::RenderPassTextureSize(const RenderPass* render_pass) {
   return render_pass->output_rect.size();
 }
 
 }  // namespace cc