Remove rendundant WebLocalFrame parameter in various plugin code.

chrome/renderer/plugins/plugin_preroller.cc

 // Copyright 2015 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 "chrome/renderer/plugins/plugin_preroller.h"
 
 #include "base/base64.h"
 #include "chrome/grit/renderer_resources.h"
 #include "chrome/renderer/plugins/chrome_plugin_placeholder.h"
 #include "chrome/renderer/plugins/power_saver_info.h"
 #include "third_party/WebKit/public/platform/WebRect.h"
 #include "third_party/WebKit/public/web/WebElement.h"
 #include "third_party/WebKit/public/web/WebPlugin.h"
 #include "third_party/WebKit/public/web/WebPluginContainer.h"
 #include "ui/gfx/codec/png_codec.h"
 
 PluginPreroller::PluginPreroller(content::RenderFrame* render_frame,
-                                 blink::WebLocalFrame* frame,
                                  const blink::WebPluginParams& params,
                                  const content::WebPluginInfo& info,
                                  const std::string& identifier,
                                  const base::string16& name,
                                  const base::string16& message,
                                  content::PluginInstanceThrottler* throttler)
     : RenderFrameObserver(render_frame),
-      frame_(frame),
       params_(params),
       info_(info),
       identifier_(identifier),
       name_(name),
       message_(message),
       throttler_(throttler) {
   DCHECK(throttler);
   throttler_->AddObserver(this);
 }
 
@@ skipping 22 matching lines @@
   if (!throttler_->IsThrottled())
     return;
 
   PowerSaverInfo power_saver_info;
   power_saver_info.power_saver_enabled = true;
   power_saver_info.poster_attribute = keyframe_data_url_.spec();
   power_saver_info.custom_poster_size = throttler_->GetSize();
 
   ChromePluginPlaceholder* placeholder =
       ChromePluginPlaceholder::CreateBlockedPlugin(
-          render_frame(), frame_, params_, info_, identifier_, name_,
+          render_frame(), params_, info_, identifier_, name_,
           IDR_PLUGIN_POSTER_HTML, message_, power_saver_info);
   placeholder->SetPremadePlugin(throttler_);
   placeholder->AllowLoading();
 
   blink::WebPluginContainer* container =
       throttler_->GetWebPlugin()->Container();
   container->SetPlugin(placeholder->plugin());
 
   bool success = placeholder->plugin()->Initialize(container);
   DCHECK(success);
 
   container->Invalidate();
   container->ReportGeometry();
 
   delete this;
 }
 
 void PluginPreroller::OnThrottlerDestroyed() {
   throttler_ = nullptr;
   delete this;
 }
 
 void PluginPreroller::OnDestruct() {
   delete this;
 }