Make drag-and-drop work with OOPIF-WebView.

content/browser/web_contents/web_contents_view_child_frame.cc

 // Copyright (c) 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/web_contents/web_contents_view_child_frame.h"
 
 #include "build/build_config.h"
 #include "content/browser/frame_host/render_widget_host_view_child_frame.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/public/browser/web_contents_view_delegate.h"
@@ skipping 17 matching lines @@
 WebContentsViewChildFrame::~WebContentsViewChildFrame() {}
 
 WebContentsView* WebContentsViewChildFrame::GetOuterView() {
   return web_contents_->GetOuterWebContents()->GetView();
 }
 
 const WebContentsView* WebContentsViewChildFrame::GetOuterView() const {
   return web_contents_->GetOuterWebContents()->GetView();
 }
 
+RenderViewHostDelegateView* WebContentsViewChildFrame::GetOuterDelegateView() {
+  RenderViewHostImpl* outer_rvh = static_cast<RenderViewHostImpl*>(
+      web_contents_->GetOuterWebContents()->GetRenderViewHost());
+  CHECK(outer_rvh);
+  return outer_rvh->GetDelegate()->GetDelegateView();
+}
+
 gfx::NativeView WebContentsViewChildFrame::GetNativeView() const {
   return GetOuterView()->GetNativeView();
 }
 
 gfx::NativeView WebContentsViewChildFrame::GetContentNativeView() const {
   return GetOuterView()->GetContentNativeView();
 }
 
 gfx::NativeWindow WebContentsViewChildFrame::GetTopLevelNativeWindow() const {
   return GetOuterView()->GetTopLevelNativeWindow();
@@ skipping 89 matching lines @@
 void WebContentsViewChildFrame::StoreFocus() {
   NOTREACHED();
 }
 
 DropData* WebContentsViewChildFrame::GetDropData() const {
   NOTREACHED();
   return nullptr;
 }
 
 void WebContentsViewChildFrame::UpdateDragCursor(WebDragOperation operation) {
-  NOTREACHED();
+  if (auto view = GetOuterDelegateView())
+    view->UpdateDragCursor(operation);
 }
 
 void WebContentsViewChildFrame::GotFocus() {
   NOTREACHED();
 }
 
 void WebContentsViewChildFrame::TakeFocus(bool reverse) {
   // TODO(avallee): http://crbug.com/610819 Advance focus to next element in
   // outer WebContents.
 }
 
 void WebContentsViewChildFrame::ShowContextMenu(
     RenderFrameHost* render_frame_host,
     const ContextMenuParams& params) {
   NOTREACHED();
 }
 
 void WebContentsViewChildFrame::StartDragging(
     const DropData& drop_data,
     WebDragOperationsMask ops,
     const gfx::ImageSkia& image,
     const gfx::Vector2d& image_offset,
     const DragEventSourceInfo& event_info,
     RenderWidgetHostImpl* source_rwh) {
-  NOTREACHED();
+  if (auto view = GetOuterDelegateView()) {
+    view->StartDragging(
+        drop_data, ops, image, image_offset, event_info, source_rwh);
+  } else {
+    web_contents_->GetOuterWebContents()->SystemDragEnded(source_rwh);
+  }
 }
 
 }  // namespace content