Remove rendundant WebLocalFrame parameter in various plugin code.

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

 /*
  * Copyright (C) 2012 Google Inc. 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
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "web/tests/FakeWebPlugin.h"
 
 namespace blink {
 
-FakeWebPlugin::FakeWebPlugin(WebFrame* frame, const WebPluginParams& params)
-    : frame_(frame) {}
+FakeWebPlugin::FakeWebPlugin(const WebPluginParams& params) {}
 
 FakeWebPlugin::~FakeWebPlugin() {}
 
 bool FakeWebPlugin::Initialize(WebPluginContainer* container) {
   container_ = container;
   return true;
 }
 
 void FakeWebPlugin::Destroy() {
-  container_ = 0;
-  frame_ = 0;
+  container_ = nullptr;
   delete this;
 }
 
 }  // namespace blink