Move blink scheduler implementation into a component

content/test/test_blink_web_unit_test_support.h

Index: content/test/test_blink_web_unit_test_support.h
diff --git a/content/test/test_blink_web_unit_test_support.h b/content/test/test_blink_web_unit_test_support.h
index 0b27e7b4b9544addffe6549c613c766ecf7517a6..66761cf56d7b4031a225018c88677a38879eff60 100644
--- a/content/test/test_blink_web_unit_test_support.h
+++ b/content/test/test_blink_web_unit_test_support.h
@@ -24,8 +24,11 @@ namespace blink {
 class WebLayerTreeView;
 }
 
-namespace content {
+namespace scheduler {
 class RendererScheduler;
+}
+
+namespace content {
 
 // An implementation of blink::WebUnitTestSupport and BlinkPlatformImpl for
 // tests.
@@ -94,7 +97,7 @@ class TestBlinkWebUnitTestSupport : public blink::WebUnitTestSupport,
   base::ScopedTempDir file_system_root_;
   scoped_ptr<WebURLLoaderMockFactory> url_loader_factory_;
   cc_blink::WebCompositorSupportImpl compositor_support_;
-  scoped_ptr<RendererScheduler> renderer_scheduler_;
+  scoped_ptr<scheduler::RendererScheduler> renderer_scheduler_;
   scoped_ptr<blink::WebThread> web_thread_;
 
 #if defined(OS_WIN) || defined(OS_MACOSX)