Adding hooks for gathering total pixels painted and rasterized stats.

cc/rendering_stats.h

Index: cc/rendering_stats.h
diff --git a/cc/rendering_stats.h b/cc/rendering_stats.h
index 96634986d70fe09ce3977bba411ba89f88fa565f..c9a689809b87d8eaafbb0907773f1b47b9b16545 100644
--- a/cc/rendering_stats.h
+++ b/cc/rendering_stats.h
@@ -16,21 +16,12 @@ struct RenderingStats {
     double totalRasterizeTimeInSeconds;
     double totalCommitTimeInSeconds;
     size_t totalCommitCount;
+    int64_t totalPixelsPainted;

[jamesr, 2012/10/29 23:38:49]

why is this int64_t instead of size_t?  Either use size_t to be consistent with
the rest of the struct or use int64 from base/basictypes.h to be consistent with
the rest of the chromium codebase

[hartmanng, 2012/10/30 20:10:51]

brianderson@ requested that I switch it to 64-bit values, presumably to ensure
we can handle very large numbers of pixels if we leave the benchmark running for
a long period of time.

I went ahead and switched all the size_t and int values here to int64 since I
believe brianderson@ plans to anyway.

+    int64_t totalPixelsRasterized;
     size_t numImplThreadScrolls;
     size_t numMainThreadScrolls;
 
-    RenderingStats()
-        : numAnimationFrames(0)
-        , numFramesSentToScreen(0)
-        , droppedFrameCount(0)
-        , totalPaintTimeInSeconds(0)
-        , totalRasterizeTimeInSeconds(0)
-        , totalCommitTimeInSeconds(0)
-        , totalCommitCount(0)
-        , numImplThreadScrolls(0)
-        , numMainThreadScrolls(0)
-    {
-    }
+    RenderingStats();
 };
 
 }