Move file chooser from RenderView(Host) to RenderFrame(Host).

components/test_runner/web_test_proxy.h

Index: components/test_runner/web_test_proxy.h
diff --git a/components/test_runner/web_test_proxy.h b/components/test_runner/web_test_proxy.h
index b02d4933848776c9d29ff32ce0bbdb0ba5cec906..2f9e3a61e7b8d64ef218f635d399befa13c5553b 100644
--- a/components/test_runner/web_test_proxy.h
+++ b/components/test_runner/web_test_proxy.h
@@ -230,10 +230,6 @@ class WebTestProxy : public Base, public WebTestProxyBase {
   blink::WebSpeechRecognizer* speechRecognizer() override {
     return view_test_client()->speechRecognizer();
   }
-  bool runFileChooser(const blink::WebFileChooserParams& params,
-                      blink::WebFileChooserCompletion* completion) override {
-    return view_test_client()->runFileChooser(params, completion);
-  }
   void showValidationMessage(
       const blink::WebRect& anchor_in_root_view,
       const blink::WebString& main_message,