cc: Move worker threads to content.

content/test/fake_compositor_dependencies.cc

Index: content/test/fake_compositor_dependencies.cc
diff --git a/content/test/fake_compositor_dependencies.cc b/content/test/fake_compositor_dependencies.cc
index e33b7ef1ac9a7c468f2ad9f9ebeff5518083c3ed..19613f0b8ceef8a2afdd362e04eb0722332cfafa 100644
--- a/content/test/fake_compositor_dependencies.cc
+++ b/content/test/fake_compositor_dependencies.cc
@@ -14,6 +14,9 @@ FakeCompositorDependencies::FakeCompositorDependencies()
     : use_single_thread_scheduler_(true) {
 }
 
+FakeCompositorDependencies::~FakeCompositorDependencies() {
+}
+
 bool FakeCompositorDependencies::IsImplSidePaintingEnabled() {
   return true;
 }
@@ -97,4 +100,12 @@ FakeCompositorDependencies::CreateExternalBeginFrameSource(int routing_id) {
   return make_scoped_ptr(new cc::FakeExternalBeginFrameSource(refresh_rate));
 }
 
+cc::TaskGraphRunner* FakeCompositorDependencies::GetTaskGraphRunner() {
+  return &task_graph_runner_;
+}
+
+bool FakeCompositorDependencies::IsGatherPixelRefsEnabled() {
+  return false;
+}
+
 }  // namespace content