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

components/test_runner/web_frame_test_proxy.h

Index: components/test_runner/web_frame_test_proxy.h
diff --git a/components/test_runner/web_frame_test_proxy.h b/components/test_runner/web_frame_test_proxy.h
index 83224b9c8d93ba5ef9a25bf6db6d42a5a4d172b4..21bd773dd725caeef25de1a9d6d85af80e03bc77 100644
--- a/components/test_runner/web_frame_test_proxy.h
+++ b/components/test_runner/web_frame_test_proxy.h
@@ -291,6 +291,10 @@ class WebFrameTestProxy : public Base, public WebFrameTestProxyBase {
     test_client()->didClearWindowObject(frame);
     Base::didClearWindowObject(frame);
   }
+  bool runFileChooser(const blink::WebFileChooserParams& params,
+                      blink::WebFileChooserCompletion* completion) override {
+    return test_client()->runFileChooser(params, completion);
+  }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebFrameTestProxy);