Update from https://crrev.com/315085

cc/quads/render_pass.h

Index: cc/quads/render_pass.h
diff --git a/cc/quads/render_pass.h b/cc/quads/render_pass.h
index 28775883e5bc8085590dd273fe426e7538962714..8a40f1792514dbe14aea0f73f12fbe9425137ebf 100644
--- a/cc/quads/render_pass.h
+++ b/cc/quads/render_pass.h
@@ -20,11 +20,17 @@
 #include "ui/gfx/transform.h"
 
 namespace base {
-namespace debug {
+namespace trace_event {
 class TracedValue;
 }
 class Value;
-};
+
+// TODO(ssid): remove these aliases after the tracing clients are moved to the
+// new trace_event namespace. See crbug.com/451032. ETA: March 2015
+namespace debug {
+using ::base::trace_event::TracedValue;
+}
+}  // namespace base
 
 namespace cc {