Remove rendundant WebLocalFrame parameter in various plugin code.

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

Index: third_party/WebKit/Source/web/tests/FakeWebPlugin.cpp
diff --git a/third_party/WebKit/Source/web/tests/FakeWebPlugin.cpp b/third_party/WebKit/Source/web/tests/FakeWebPlugin.cpp
index c72d4548d86b06e08c9578526d7753b112b56904..43b7d16a31343eaba6e6be6e82204fd08ea943f9 100644
--- a/third_party/WebKit/Source/web/tests/FakeWebPlugin.cpp
+++ b/third_party/WebKit/Source/web/tests/FakeWebPlugin.cpp
@@ -32,8 +32,7 @@
 
 namespace blink {
 
-FakeWebPlugin::FakeWebPlugin(WebFrame* frame, const WebPluginParams& params)
-    : frame_(frame) {}
+FakeWebPlugin::FakeWebPlugin(const WebPluginParams& params) {}
 
 FakeWebPlugin::~FakeWebPlugin() {}
 
@@ -43,8 +42,7 @@ bool FakeWebPlugin::Initialize(WebPluginContainer* container) {
 }
 
 void FakeWebPlugin::Destroy() {
-  container_ = 0;
-  frame_ = 0;
+  container_ = nullptr;
   delete this;
 }