Remove rendundant WebLocalFrame parameter in various plugin code.

third_party/WebKit/Source/web/tests/WebHelperPluginTest.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 "public/web/WebHelperPlugin.h"
 
 #include "platform/testing/UnitTestHelpers.h"
 #include "public/web/WebFrameClient.h"
 #include "public/web/WebLocalFrame.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "web/tests/FakeWebPlugin.h"
 #include "web/tests/FrameTestHelpers.h"
 
 namespace blink {
 
 namespace {
 
 class FakePlaceholderWebPlugin : public FakeWebPlugin {
  public:
-  FakePlaceholderWebPlugin(WebFrame* frame, const WebPluginParams& params)
-      : FakeWebPlugin(frame, params) {}
+  explicit FakePlaceholderWebPlugin(const WebPluginParams& params)
+      : FakeWebPlugin(params) {}
   ~FakePlaceholderWebPlugin() override {}
 
   bool IsPlaceholder() override { return true; }
 };
 
 class WebHelperPluginFrameClient : public FrameTestHelpers::TestWebFrameClient {
  public:
   WebHelperPluginFrameClient() : create_placeholder_(false) {}
   ~WebHelperPluginFrameClient() override {}
 
-  WebPlugin* CreatePlugin(WebLocalFrame* frame,
-                          const WebPluginParams& params) override {
-    return create_placeholder_ ? new FakePlaceholderWebPlugin(frame, params)
-                               : new FakeWebPlugin(frame, params);
+  WebPlugin* CreatePlugin(const WebPluginParams& params) override {
+    return create_placeholder_ ? new FakePlaceholderWebPlugin(params)
+                               : new FakeWebPlugin(params);
   }
 
   void SetCreatePlaceholder(bool create_placeholder) {
     create_placeholder_ = create_placeholder;
   }
 
  private:
   bool create_placeholder_;
 };
 
@@ skipping 38 matching lines @@
   frame_client_.SetCreatePlaceholder(true);
 
   plugin_.reset(WebHelperPlugin::Create(
       "hello", helper_.WebView()->MainFrame()->ToWebLocalFrame()));
   EXPECT_EQ(0, plugin_.get());
 }
 
 }  // namespace
 
 }  // namespace blink