Fix Resource leak in ActivityLoggerTest unit tests.

Source/web/tests/ActivityLoggerTest.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 
 #include "FrameTestHelpers.h"
 #include "bindings/core/v8/ScriptController.h"
 #include "bindings/core/v8/ScriptSourceCode.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8DOMActivityLogger.h"
+#include "public/web/WebCache.h"
 #include "web/WebLocalFrameImpl.h"
 #include "wtf/Forward.h"
 #include "wtf/text/Base64.h"
 #include <gtest/gtest.h>
 #include <v8.h>
 
 namespace blink {
 
 using blink::FrameTestHelpers::WebViewHelper;
 using blink::FrameTestHelpers::pumpPendingRequestsDoNotUse;
@@ skipping 40 matching lines @@
 protected:
     ActivityLoggerTest()
     {
         m_activityLogger = new TestActivityLogger();
         V8DOMActivityLogger::setActivityLogger(isolatedWorldId, String(), adoptPtr(m_activityLogger));
         m_webViewHelper.initialize(true);
         m_scriptController = &m_webViewHelper.webViewImpl()->mainFrameImpl()->frame()->script();
         FrameTestHelpers::loadFrame(m_webViewHelper.webViewImpl()->mainFrame(), "about:blank");
     }
 
+    ~ActivityLoggerTest()
+    {
+        WebCache::clear();
+    }
+
     void executeScriptInMainWorld(const String& script) const
     {
         v8::HandleScope scope(v8::Isolate::GetCurrent());
         m_scriptController->executeScriptInMainWorld(script);
         pumpPendingRequestsDoNotUse(m_webViewHelper.webViewImpl()->mainFrame());
     }
 
     void executeScriptInIsolatedWorld(const String& script) const
     {
         v8::HandleScope scope(v8::Isolate::GetCurrent());
@@ skipping 436 matching lines @@
         "blinkAddElement | script | data:text/html;charset=utf-8,D\n"
         "blinkRequestResource | Script | data:text/html;charset=utf-8,D\n"
         "blinkRequestResource | XMLHttpRequest | data:text/html;charset=utf-8,E";
     executeScriptInMainWorld(code);
     ASSERT_TRUE(verifyActivities(""));
     executeScriptInIsolatedWorld(code);
     ASSERT_TRUE(verifyActivities(expectedActivities));
 }
 
 } // namespace blink