Fix Resource leak in ActivityLoggerTest unit tests.

Evict resources from the memory cache upon shutdown.

R=haraken
BUG=526423

Review URL: https://codereview.chromium.org/1309843011

git-svn-id: svn://svn.chromium.org/blink/trunk@201634 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/web/tests/ActivityLoggerTest.cpp

@@ -9,6 +9,7 @@
 #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"
@@ -69,6 +70,11 @@ protected:
         FrameTestHelpers::loadFrame(m_webViewHelper.webViewImpl()->mainFrame(), "about:blank");
     }
 
+    ~ActivityLoggerTest()
+    {
+        WebCache::clear();
+    }
+
     void executeScriptInMainWorld(const String& script) const
     {
         v8::HandleScope scope(v8::Isolate::GetCurrent());