this change improves the following points of the FPS counter:

-cleaner design: less colors, text arranged above the graph, deviation number right aligned 
-added transparency: FPS counter does not completely cover the webpage
-less frequent number updates: makes the numbers easier to read
-indicator line at 60fps

comparison images: https://docs.google.com/folder/d/0B8Y78t3tjy1XZk1xdWx6VjN5aFE/edit

Please download the patch and provide a screenshot from your system to test the layout.

Review URL: https://chromiumcodereview.appspot.com/11272042

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@166041 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 11 insertions, 2 deletions

diff --git a/cc/heads_up_display_layer_impl.h b/cc/heads_up_display_layer_impl.h
index bcca767..3276293 100644
--- a/cc/heads_up_display_layer_impl.h
+++ b/cc/heads_up_display_layer_impl.h
@@ -6,12 +6,15 @@
 #define CC_HEADS_UP_DISPLAY_LAYER_IMPL_H_
 
 #include "base/memory/scoped_ptr.h"
+#include "base/time.h"
 #include "cc/cc_export.h"
 #include "cc/font_atlas.h"
 #include "cc/layer_impl.h"
 #include "cc/scoped_texture.h"
 
 class SkCanvas;
+class SkPaint;
+struct SkRect;
 
 namespace cc {
 
@@ -44,13 +47,19 @@ private:
     virtual const char* layerTypeAsString() const OVERRIDE;
 
     void drawHudContents(SkCanvas*);
-    void drawFPSCounter(SkCanvas*, FrameRateCounter*, int top, int height);
-    void drawFPSCounterText(SkCanvas*, FrameRateCounter*, int top, int width, int height);
+    int drawFPSCounter(SkCanvas*, FrameRateCounter*);
+    void drawFPSCounterText(SkCanvas*, SkPaint&, FrameRateCounter*, SkRect);
+    void drawFPSCounterGraph(SkCanvas*, SkPaint&, FrameRateCounter*, SkRect);
     void drawDebugRects(SkCanvas*, DebugRectHistory*);
 
     scoped_ptr<FontAtlas> m_fontAtlas;
     scoped_ptr<ScopedTexture> m_hudTexture;
     scoped_ptr<SkCanvas> m_hudCanvas;
+
+    double m_averageFPS;
+    double m_stdDeviation;
+
+    base::TimeTicks textUpdateTime;
 };
 
 }  // namespace cc