cc: Parameterize the main thread task runner

Make it possible for clients pass in a custom task runner to be used for
posting compositor related work onto the main thread. This will be used
for prioritizing compositor tasks by the Blink scheduler.

Covered by existing tests.

BUG=391005

Review URL: https://codereview.chromium.org/400773002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@284103 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 12 insertions, 7 deletions

diff --git a/cc/layers/layer_unittest.cc b/cc/layers/layer_unittest.cc
index ba77513..246ec43 100644
--- a/cc/layers/layer_unittest.cc
+++ b/cc/layers/layer_unittest.cc
@@ -41,7 +41,7 @@ class MockLayerTreeHost : public LayerTreeHost {
  public:
   explicit MockLayerTreeHost(FakeLayerTreeHostClient* client)
       : LayerTreeHost(client, NULL, LayerTreeSettings()) {
-    InitializeSingleThreaded(client);
+    InitializeSingleThreaded(client, base::MessageLoopProxy::current());
   }
 
   MOCK_METHOD0(SetNeedsCommit, void());
@@ -873,16 +873,21 @@ class LayerTreeHostFactory {
         shared_bitmap_manager_(new TestSharedBitmapManager()) {}
 
   scoped_ptr<LayerTreeHost> Create() {
-    return LayerTreeHost::CreateSingleThreaded(&client_,
-                                               &client_,
-                                               shared_bitmap_manager_.get(),
-                                               LayerTreeSettings()).Pass();
+    return LayerTreeHost::CreateSingleThreaded(
+               &client_,
+               &client_,
+               shared_bitmap_manager_.get(),
+               LayerTreeSettings(),
+               base::MessageLoopProxy::current()).Pass();
   }
 
   scoped_ptr<LayerTreeHost> Create(LayerTreeSettings settings) {
     return LayerTreeHost::CreateSingleThreaded(
-               &client_, &client_, shared_bitmap_manager_.get(), settings)
-        .Pass();
+               &client_,
+               &client_,
+               shared_bitmap_manager_.get(),
+               settings,
+               base::MessageLoopProxy::current()).Pass();
   }
 
  private: