Remove redundant WebLocalFrame* parameter from runScriptsAtDocumentIdle

Remove redundant WebLocalFrame* parameter from runScriptsAtDocumentIdle
in WebFrameClient.

Review-Url: https://codereview.chromium.org/2793523002
Cr-Commit-Position: refs/heads/master@{#463519}
diff --git a/content/renderer/render_frame_impl.h b/content/renderer/render_frame_impl.h
index f789ff54..9fbf80e 100644
--- a/content/renderer/render_frame_impl.h
+++ b/content/renderer/render_frame_impl.h
@@ -578,7 +578,7 @@
   void DidChangeIcon(blink::WebIconURL::Type icon_type) override;
   void DidFinishDocumentLoad(blink::WebLocalFrame* frame) override;
   void RunScriptsAtDocumentReady(bool document_is_empty) override;
-  void RunScriptsAtDocumentIdle(blink::WebLocalFrame* frame) override;
+  void RunScriptsAtDocumentIdle() override;
   void DidHandleOnloadEvents() override;
   void DidFailLoad(const blink::WebURLError& error,
                    blink::WebHistoryCommitType commit_type) override;