Remove BrowserPlugin's -internal-attach method

extensions/renderer/script_context.cc

Index: extensions/renderer/script_context.cc
diff --git a/extensions/renderer/script_context.cc b/extensions/renderer/script_context.cc
index 20109a41fef5b126ef73b70e40a74f60835809d0..11ec22bc000367daebfaa09e206f9c83f0e69cbe 100644
--- a/extensions/renderer/script_context.cc
+++ b/extensions/renderer/script_context.cc
@@ -10,6 +10,7 @@
 #include "base/strings/string_util.h"
 #include "base/values.h"
 #include "content/public/common/url_constants.h"
+#include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_view.h"
 #include "content/public/renderer/v8_value_converter.h"
 #include "extensions/common/extension.h"
@@ -73,6 +74,13 @@ content::RenderView* ScriptContext::GetRenderView() const {
     return NULL;
 }
 
+content::RenderFrame* ScriptContext::GetRenderFrame() const {
+  if (web_frame_)
+    return content::RenderFrame::FromWebFrame(web_frame_);
+  else
+    return NULL;
+}
+
 v8::Local<v8::Value> ScriptContext::CallFunction(
     v8::Handle<v8::Function> function,
     int argc,