mechanical rename of base::debug -> base::trace_event for /cc

cc/trees/proxy.h

Index: cc/trees/proxy.h
diff --git a/cc/trees/proxy.h b/cc/trees/proxy.h
index 2f181fc7688a929f070799f2f93db58aec8decdb..02a94bc2dab7f349eae3d3d59b997d9e1db985e9 100644
--- a/cc/trees/proxy.h
+++ b/cc/trees/proxy.h
@@ -20,14 +20,8 @@ namespace base {
 namespace trace_event {
 class TracedValue;
 }
-
-// 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;
-}
 class SingleThreadTaskRunner;
-}  // namespace base
+}
 
 namespace gfx {
 class Rect;
@@ -108,7 +102,7 @@ class CC_EXPORT Proxy {
 
   virtual bool SupportsImplScrolling() const = 0;
 
-  virtual void AsValueInto(base::debug::TracedValue* value) const = 0;
+  virtual void AsValueInto(base::trace_event::TracedValue* value) const = 0;
 
   virtual void SetDebugState(const LayerTreeDebugState& debug_state) = 0;