Add WebDragData to blink::WebView::dragtargetDrop

content/common/drag_messages.h

Index: content/common/drag_messages.h
diff --git a/content/common/drag_messages.h b/content/common/drag_messages.h
index 8d2fd7723701135a9739638abf4b7cb0c68f6176..7771f4ddafeda20b88dcaf8253a473339f1544a6 100644
--- a/content/common/drag_messages.h
+++ b/content/common/drag_messages.h
@@ -5,6 +5,9 @@
 // IPC messages for drag and drop.
 // Multiply-included message file, hence no include guard.
 
+#include <vector>
+
+#include "base/strings/string16.h"
 #include "content/common/drag_event_source_info.h"
 #include "content/public/common/drop_data.h"
 #include "ipc/ipc_message_macros.h"
@@ -18,7 +21,7 @@
 // Messages sent from the browser to the renderer.
 
 IPC_MESSAGE_ROUTED5(DragMsg_TargetDragEnter,
-                    content::DropData /* drop_data */,
+                    std::vector<content::MimeTypeKindPair> /* drop_data */,
                     gfx::Point /* client_pt */,
                     gfx::Point /* screen_pt */,
                     blink::WebDragOperationsMask /* ops_allowed */,
@@ -32,7 +35,8 @@ IPC_MESSAGE_ROUTED4(DragMsg_TargetDragOver,
 
 IPC_MESSAGE_ROUTED0(DragMsg_TargetDragLeave)
 
-IPC_MESSAGE_ROUTED3(DragMsg_TargetDrop,
+IPC_MESSAGE_ROUTED4(DragMsg_TargetDrop,
+                    content::DropData /* drop_data */,
                     gfx::Point /* client_pt */,
                     gfx::Point /* screen_pt */,
                     int /* key_modifiers */)