Implemented GetWindowSnapshot on RenderViewImpl

content/public/browser/window_util.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_BROWSER_WINDOW_UTIL_H_
+#define CONTENT_PUBLIC_BROWSER_WINDOW_UTIL_H_
+
+#include <vector>
+
+#include "ui/gfx/native_widget_types.h"
+
+namespace gfx {
+class Rect;
+}
+
+namespace content {
+
+// Grabs a snapshot of the window/view. No security checks are done.
+// This is intended to be used for debugging purposes where no BrowserProcess
+// instance is available (ie. tests). DO NOT use in a result of user action.
+bool GrabWindowSnapshot(
+    gfx::NativeWindow window,
+    std::vector<unsigned char>* png_representation,
+    const gfx::Rect& snapshot_bounds);
+
+bool GrabViewSnapshot(
+    gfx::NativeView view,
+    std::vector<unsigned char>* png_representation,
+    const gfx::Rect& snapshot_bounds);
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_WINDOW_UTIL_H_