Bug 1473029, remove the region arguments from InvokeDragSession and InvokeDragSessionWithImage, r=mstange

widget/gtk/nsDragService.cpp

@@ -312,7 +312,6 @@ NS_IMETHODIMP
 nsDragService::InvokeDragSession(nsINode *aDOMNode,
                                  const nsACString& aPrincipalURISpec,
                                  nsIArray * aArrayTransferables,
-                                 nsIScriptableRegion * aRegion,
                                  uint32_t aActionType,
                                  nsContentPolicyType aContentPolicyType =
                                    nsIContentPolicy::TYPE_OTHER)
@@ -328,7 +327,7 @@ nsDragService::InvokeDragSession(nsINode *aDOMNode,
 
     return nsBaseDragService::InvokeDragSession(aDOMNode, aPrincipalURISpec,
                                                 aArrayTransferables,
-                                                aRegion, aActionType,
+                                                aActionType,
                                                 aContentPolicyType);
 }
 
@@ -351,9 +350,6 @@ nsDragService::InvokeDragSessionImpl(nsIArray* aArrayTransferables,
     if (!sourceList)
         return NS_OK;
 
-    // stored temporarily until the drag-begin signal has been received
-    mSourceRegion = aRegion;
-
     // save our action type
     GdkDragAction action = GDK_ACTION_DEFAULT;
 
@@ -396,8 +392,6 @@ nsDragService::InvokeDragSessionImpl(nsIArray* aArrayTransferables,
                                              1,
                                              &event);
 
-    mSourceRegion = nullptr;
-
     nsresult rv;
     if (context) {
         StartDragSession();
@@ -1723,7 +1717,7 @@ void nsDragService::SetDragIcon(GdkDragContext* aContext)
     LayoutDeviceIntRect dragRect;
     nsPresContext* pc;
     RefPtr<SourceSurface> surface;
-    DrawDrag(mSourceNode, mSourceRegion, mScreenPosition,
+    DrawDrag(mSourceNode, mRegion, mScreenPosition,
              &dragRect, &surface, &pc);
     if (!pc)
         return;