cc: Use correct message loop proxy in BlockingTaskRunner

cc/output/software_renderer_unittest.cc

Index: cc/output/software_renderer_unittest.cc
diff --git a/cc/output/software_renderer_unittest.cc b/cc/output/software_renderer_unittest.cc
index bcade58dc76f52f70f7bad33aad07a9d38f8cd5b..ad88709a71b76f6545346917cc4b23ed69406502 100644
--- a/cc/output/software_renderer_unittest.cc
+++ b/cc/output/software_renderer_unittest.cc
@@ -36,9 +36,13 @@ class SoftwareRendererTest : public testing::Test, public RendererClient {
     CHECK(output_surface_->BindToClient(&output_surface_client_));
 
     shared_bitmap_manager_.reset(new TestSharedBitmapManager());
-    resource_provider_ = ResourceProvider::Create(
-        output_surface_.get(), shared_bitmap_manager_.get(), 0, false, 1,
-        false);
+    resource_provider_ = ResourceProvider::Create(output_surface_.get(),
+                                                  shared_bitmap_manager_.get(),
+                                                  NULL,
+                                                  0,
+                                                  false,
+                                                  1,
+                                                  false);
     renderer_ = SoftwareRenderer::Create(
         this, &settings_, output_surface_.get(), resource_provider());
   }