Drag-and-drop: DragEnter, DragOver, DragLeave, DragDrop

content/browser/renderer_host/render_widget_host_impl.h

Index: content/browser/renderer_host/render_widget_host_impl.h
diff --git a/content/browser/renderer_host/render_widget_host_impl.h b/content/browser/renderer_host/render_widget_host_impl.h
index 1d319b166ab7159cad0d508ebf317f2702b22622..e65d9a422332f0af423d44d9af82f3d2b832fb54 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -174,6 +174,24 @@ class CONTENT_EXPORT RenderWidgetHostImpl : public RenderWidgetHost,
       RenderWidgetHost::InputEventObserver* observer) override;
   void GetScreenInfo(content::ScreenInfo* result) override;
   void HandleCompositorProto(const std::vector<uint8_t>& proto) override;
+  // |drop_data| must have been filtered. The embedder should call
+  // FilterDropData before passing the drop data to RWHI.
+  void DragTargetDragEnter(const DropData& drop_data,
+                           const gfx::Point& client_pt,
+                           const gfx::Point& screen_pt,
+                           blink::WebDragOperationsMask operations_allowed,
+                           int key_modifiers) override;
+  void DragTargetDragOver(const gfx::Point& client_pt,
+                          const gfx::Point& screen_pt,
+                          blink::WebDragOperationsMask operations_allowed,
+                          int key_modifiers) override;
+  void DragTargetDragLeave() override;
+  // |drop_data| must have been filtered. The embedder should call
+  // FilterDropData before passing the drop data to RWHI.
+  void DragTargetDrop(const DropData& drop_data,
+                      const gfx::Point& client_pt,
+                      const gfx::Point& screen_pt,
+                      int key_modifiers) override;
 
   // Notification that the screen info has changed.
   void NotifyScreenInfoChanged();
@@ -667,6 +685,12 @@ class CONTENT_EXPORT RenderWidgetHostImpl : public RenderWidgetHost,
       int snapshot_id,
       scoped_refptr<base::RefCountedBytes> png_data);
 
+  // 1. Grants permissions to URL (if any)
+  // 2. Grants permissions to filenames
+  // 3. Grants permissions to file system files.
+  // 4. Register the files with the IsolatedContext.
+  void GrantFileAccessFromDropData(DropData* drop_data);
+
   // true if a renderer has once been valid. We use this flag to display a sad
   // tab only when we lose our renderer and not if a paint occurs during
   // initialization.