Remove custom counts histogram from the blink API.

third_party/WebKit/Source/bindings/core/v8/ScriptController.cpp

 /*
  * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2014 Opera Software ASA. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
@@ skipping 50 matching lines @@
 #include "core/inspector/ConsoleMessage.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/inspector/InspectorTraceEvents.h"
 #include "core/inspector/v8/V8StackTrace.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/FrameLoader.h"
 #include "core/loader/FrameLoaderClient.h"
 #include "core/loader/NavigationScheduler.h"
 #include "core/loader/ProgressTracker.h"
 #include "core/plugins/PluginView.h"
+#include "platform/Histogram.h"
 #include "platform/NotImplemented.h"
 #include "platform/TraceEvent.h"
 #include "platform/UserGestureIndicator.h"
 #include "platform/Widget.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "public/platform/Platform.h"
 #include "wtf/CurrentTime.h"
 #include "wtf/StdLibExtras.h"
 #include "wtf/StringExtras.h"
 #include "wtf/text/CString.h"
@@ skipping 46 matching lines @@
         disposeUnderlyingV8Object(isolate(), m_windowScriptNPObject);
         _NPN_ReleaseObject(m_windowScriptNPObject);
         m_windowScriptNPObject = 0;
     }
 }
 
 void ScriptController::clearForClose()
 {
     double start = currentTime();
     m_windowProxyManager->clearForClose();
-    Platform::current()->histogramCustomCounts("WebCore.ScriptController.clearForClose", (currentTime() - start) * 1000, 0, 10000, 50);
+    double end = currentTime();
+    DEFINE_STATIC_LOCAL(CustomCountHistogram, clearForCloseHistogram, ("WebCore.ScriptController.clearForClose", 0, 10000, 50));
+    clearForCloseHistogram.count((end - start) * 1000);
 }
 
 void ScriptController::updateSecurityOrigin(SecurityOrigin* origin)
 {
     m_windowProxyManager->mainWorldProxy()->updateSecurityOrigin(origin);
     Vector<std::pair<ScriptState*, SecurityOrigin*>> isolatedContexts;
     m_windowProxyManager->collectIsolatedContexts(isolatedContexts);
     for (auto isolatedContext : isolatedContexts)
         m_windowProxyManager->windowProxy(isolatedContext.first->world())->updateSecurityOrigin(isolatedContext.second);
 }
@@ skipping 255 matching lines @@
 {
     // V8 binding expects ScriptController::clearWindowProxy only be called
     // when a frame is loading a new page. This creates a new context for the new page.
 
     double start = currentTime();
     // The V8 context must be available for |clearScriptObjects()|.
     // The below call must be before |clearForNavigation()| which disposes the V8 context.
     clearScriptObjects();
 
     m_windowProxyManager->clearForNavigation();
-    Platform::current()->histogramCustomCounts("WebCore.ScriptController.clearWindowProxy", (currentTime() - start) * 1000, 0, 10000, 50);
+    double end = currentTime();
+    DEFINE_STATIC_LOCAL(CustomCountHistogram, clearWindowProxyHistogram, ("WebCore.ScriptController.clearWindowProxy", 0, 10000, 50));
+    clearWindowProxyHistogram.count((end - start) * 1000);
 }
 
 void ScriptController::setCaptureCallStackForUncaughtExceptions(v8::Isolate* isolate, bool value)
 {
     isolate->SetCaptureStackTraceForUncaughtExceptions(value, V8StackTrace::maxCallStackSizeToCapture, stackTraceOptions);
 }
 
 void ScriptController::collectIsolatedContexts(Vector<std::pair<ScriptState*, SecurityOrigin*>>& result)
 {
     m_windowProxyManager->collectIsolatedContexts(result);
@@ skipping 173 matching lines @@
         for (size_t i = 0; i < resultArray->Length(); ++i) {
             v8::Local<v8::Value> value;
             if (!resultArray->Get(scriptState->context(), i).ToLocal(&value))
                 return;
             results->append(value);
         }
     }
 }
 
 } // namespace blink