cc:: Add remote mode to the compositor

cc/layers/scrollbar_layer_unittest.cc

Index: cc/layers/scrollbar_layer_unittest.cc
diff --git a/cc/layers/scrollbar_layer_unittest.cc b/cc/layers/scrollbar_layer_unittest.cc
index 0202f4b41836c99bc13304f15bcb0d14bbb82232..c19807cc6ac457d3cc364f4ca63759819d64f3ca 100644
--- a/cc/layers/scrollbar_layer_unittest.cc
+++ b/cc/layers/scrollbar_layer_unittest.cc
@@ -65,7 +65,7 @@ class FakeResourceTrackingLayerTreeHost : public FakeLayerTreeHost {
  public:
   FakeResourceTrackingLayerTreeHost(FakeLayerTreeHostClient* client,
                                     LayerTreeHost::InitParams* params)
-      : FakeLayerTreeHost(client, params, CompositorMode::SingleThreaded),
+      : FakeLayerTreeHost(client, params, CompositorMode::SINGLE_THREADED),
         next_id_(1),
         total_ui_resource_created_(0),
         total_ui_resource_deleted_(0) {
@@ -634,7 +634,7 @@ TEST_F(ScrollbarLayerTestMaxTextureSize, DirectRenderer) {
   int max_size = 0;
   context->getIntegerv(GL_MAX_TEXTURE_SIZE, &max_size);
   SetScrollbarBounds(gfx::Size(max_size + 100, max_size + 100));
-  RunTest(CompositorMode::Threaded, false);
+  RunTest(CompositorMode::THREADED, false);
 }
 
 TEST_F(ScrollbarLayerTestMaxTextureSize, DelegatingRenderer) {
@@ -643,7 +643,7 @@ TEST_F(ScrollbarLayerTestMaxTextureSize, DelegatingRenderer) {
   int max_size = 0;
   context->getIntegerv(GL_MAX_TEXTURE_SIZE, &max_size);
   SetScrollbarBounds(gfx::Size(max_size + 100, max_size + 100));
-  RunTest(CompositorMode::Threaded, true);
+  RunTest(CompositorMode::THREADED, true);
 }
 
 class ScrollbarLayerTestResourceCreationAndRelease : public ScrollbarLayerTest {