Mac Support for drag-and-drop tests that start dragging via mouse simulation.

content/public/test/browser_test_utils.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_PUBLIC_TEST_BROWSER_TEST_UTILS_H_
 #define CONTENT_PUBLIC_TEST_BROWSER_TEST_UTILS_H_
 
 #include <queue>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/process/process.h"
 #include "base/strings/string16.h"
 #include "build/build_config.h"
 #include "cc/output/compositor_frame.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/render_process_host_observer.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/common/page_type.h"
 #include "ipc/message_filter.h"
 #include "storage/common/fileapi/file_system_types.h"
+#include "third_party/WebKit/public/platform/WebDragOperation.h"
 #include "third_party/WebKit/public/platform/WebInputEvent.h"
 #include "third_party/WebKit/public/platform/WebMouseEvent.h"
 #include "ui/accessibility/ax_node_data.h"
 #include "ui/accessibility/ax_tree_update.h"
 #include "ui/events/keycodes/dom/dom_code.h"
 #include "ui/events/keycodes/dom/dom_key.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "url/gurl.h"
 
 #if defined(OS_WIN)
@@ skipping 713 matching lines @@
                               GURL file_path,
                               std::string blob_uuid,
                               int64_t position);
 
  private:
   PwnMessageHelper();  // Not instantiable.
 
   DISALLOW_COPY_AND_ASSIGN(PwnMessageHelper);
 };
 
+// DragStartCallback should return |true| if the callback handled the drag start
+// request and wants to suppress passing the drag start request to the OS layer.
+// Otherwise (to continue handling the drag start request as usual), return
+// false.
+using DragStartCallback =
+    base::Callback<bool(const DropData& drop_data,
+                        blink::WebDragOperationsMask drag_operations_mask)>;
+void RegisterDragStartCallback(DragStartCallback callback);
+
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_BROWSER_TEST_UTILS_H_