Drag-and-drop: Move startDrag out of WebView/RenderView.

components/test_runner/web_view_test_proxy.h

Index: components/test_runner/web_view_test_proxy.h
diff --git a/components/test_runner/web_view_test_proxy.h b/components/test_runner/web_view_test_proxy.h
index 088133dee7d25f4d20f16796ba38fdfc5bb0e1a6..984ef59fd826a1847b1204fb54649cfd644a8739 100644
--- a/components/test_runner/web_view_test_proxy.h
+++ b/components/test_runner/web_view_test_proxy.h
@@ -175,12 +175,12 @@ class WebViewTestProxy : public Base, public WebViewTestProxyBase {
   void resetInputMethod() override { widget_test_client()->resetInputMethod(); }
 
   // WebViewClient implementation.
-  void startDragging(blink::WebLocalFrame* frame,
+  void startDragging(blink::WebReferrerPolicy policy,
                      const blink::WebDragData& data,
                      blink::WebDragOperationsMask mask,
                      const blink::WebImage& image,
                      const blink::WebPoint& point) override {
-    view_test_client()->startDragging(frame, data, mask, image, point);
+    widget_test_client()->startDragging(policy, data, mask, image, point);
     // Don't forward this call to Base because we don't want to do a real
     // drag-and-drop.
   }