Remove HistogramSupport abstraction layer

Source/bindings/v8/custom/V8InspectorFrontendHostCustom.cpp

Index: Source/bindings/v8/custom/V8InspectorFrontendHostCustom.cpp
diff --git a/Source/bindings/v8/custom/V8InspectorFrontendHostCustom.cpp b/Source/bindings/v8/custom/V8InspectorFrontendHostCustom.cpp
index 5d3452beb229450172b3025a840b301d8cddcfab..fb2dd8ecc4d7c5c9e8e49b7f6174730adfe18ffe 100644
--- a/Source/bindings/v8/custom/V8InspectorFrontendHostCustom.cpp
+++ b/Source/bindings/v8/custom/V8InspectorFrontendHostCustom.cpp
@@ -36,7 +36,7 @@
 #include "core/inspector/InspectorController.h"
 #include "core/inspector/InspectorFrontendClient.h"
 #include "core/inspector/InspectorFrontendHost.h"
-#include "core/platform/HistogramSupport.h"
+#include "public/platform/Platform.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
@@ -124,7 +124,7 @@ static void histogramEnumeration(const char* name, const v8::FunctionCallbackInf
 
     int sample = args[0]->ToInt32()->Value();
     if (sample < boundaryValue)
-        HistogramSupport::histogramEnumeration(name, sample, boundaryValue);
+        WebKit::Platform::current()->histogramEnumeration(name, sample, boundaryValue);
 }
 
 void V8InspectorFrontendHost::recordActionTakenMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& args)