Move tracing namespace from base::debug to base::trace_event.

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..6ee05a429dba225e900c7edcb0384ddd79740c05 100644
--- a/cc/quads/render_pass.h
+++ b/cc/quads/render_pass.h
@@ -20,11 +20,18 @@
 #include "ui/gfx/transform.h"
 
 namespace base {
-namespace debug {
+namespace trace_event {
 class TracedValue;
 }
+

[Primiano Tucci (use gerrit), 2015/02/03 10:42:36]

Nit: I think you want this blank line below "class Value", not above.

[ssid, 2015/02/03 15:08:07]

Done.

 class Value;
-};
+// This is added temporarily. Once the renaming of namespace usages
+// accross all folders are done, this will be removed.
+// TODO(ssid): crrev.com/837303004
+namespace debug {
+using ::base::trace_event::TracedValue;
+}
+}  // namespace base
 
 namespace cc {