cc: Use commit to activation time in repaint HUD

cc/layers/heads_up_display_layer_impl.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/layers/heads_up_display_layer_impl.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/debug/trace_event.h"
@@ skipping 549 matching lines @@
                                          kGraphHeight);
 
   const std::string value_text =
       base::StringPrintf("%.1f", paint_time_graph_.value);
   const std::string min_max_text = base::StringPrintf(
       "%.1f-%.1f", paint_time_graph_.min, paint_time_graph_.max);
 
   paint.setColor(DebugColors::PaintTimeDisplayTextAndGraphColor());
   DrawText(canvas,
            &paint,
-           "Page paint time (ms)",
+           "Activation time (ms)",
            SkPaint::kLeft_Align,
            kFontHeight,
            text_bounds.left(),
            text_bounds.bottom());
   DrawText(canvas,
            &paint,
            value_text,
            SkPaint::kLeft_Align,
            kFontHeight,
            text_bounds2.left(),
@@ skipping 201 matching lines @@
   return "cc::HeadsUpDisplayLayerImpl";
 }
 
 void HeadsUpDisplayLayerImpl::AsValueInto(
     base::debug::TracedValue* dict) const {
   LayerImpl::AsValueInto(dict);
   dict->SetString("layer_name", "Heads Up Display Layer");
 }
 
 }  // namespace cc