Fix header guard and namespace in android_webview

android_webview/browser/child_frame.h

 // Copyright 2015 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 ANDROID_WEBVIEW_BROWSER_CHILD_FRAME_H_
 #define ANDROID_WEBVIEW_BROWSER_CHILD_FRAME_H_
 
 #include <deque>
 #include <memory>
 
@@ skipping 38 matching lines @@
   const gfx::Transform transform_for_tile_priority;
   const bool offscreen_pre_raster;
   const bool is_layer;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ChildFrame);
 };
 
 using ChildFrameQueue = std::deque<std::unique_ptr<ChildFrame>>;
 
-}  // namespace webview
+}  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_CHILD_FRAME_H_