Remove custom counts histogram from the blink API.

third_party/WebKit/Source/web/WebViewImpl.cpp

Index: third_party/WebKit/Source/web/WebViewImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebViewImpl.cpp b/third_party/WebKit/Source/web/WebViewImpl.cpp
index 0587c8118e1a33473fd23c174be70893b03b8b1b..f28b4621f5b1090a71513ffa96a6c843aa2b0cf3 100644
--- a/third_party/WebKit/Source/web/WebViewImpl.cpp
+++ b/third_party/WebKit/Source/web/WebViewImpl.cpp
@@ -99,6 +99,7 @@
 #include "platform/ContextMenu.h"
 #include "platform/ContextMenuItem.h"
 #include "platform/Cursor.h"
+#include "platform/Histogram.h"
 #include "platform/KeyboardCodes.h"
 #include "platform/Logging.h"
 #include "platform/NotImplemented.h"
@@ -2055,8 +2056,10 @@ void WebViewImpl::paint(WebCanvas* canvas, const WebRect& rect)
     PageWidgetDelegate::paint(*m_page, canvas, rect, *m_page->deprecatedLocalMainFrame());
     double paintEnd = currentTime();
     double pixelsPerSec = (rect.width * rect.height) / (paintEnd - paintStart);
-    Platform::current()->histogramCustomCounts("Renderer4.SoftwarePaintDurationMS", (paintEnd - paintStart) * 1000, 0, 120, 30);
-    Platform::current()->histogramCustomCounts("Renderer4.SoftwarePaintMegapixPerSecond", pixelsPerSec / 1000000, 10, 210, 30);
+    DEFINE_STATIC_LOCAL(CustomCountHistogram, softwarePaintDurationHistogram, ("Renderer4.SoftwarePaintDurationMS", 0, 120, 30));
+    softwarePaintDurationHistogram.count((paintEnd - paintStart) * 1000);
+    DEFINE_STATIC_LOCAL(CustomCountHistogram, softwarePaintRateHistogram, ("Renderer4.SoftwarePaintMegapixPerSecond", 10, 210, 30));
+    softwarePaintRateHistogram.count(pixelsPerSec / 1000000);
 }
 
 #if OS(ANDROID)