chrome/blink: Add functionality for in-product help for media elements.

content/public/common/web_preferences.h

 // Copyright 2014 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_COMMON_WEB_PREFERENCES_H_
 #define CONTENT_PUBLIC_COMMON_WEB_PREFERENCES_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 237 matching lines @@
   bool video_fullscreen_orientation_lock_enabled;
   // If enabled, fullscreen should be entered/exited when the device is rotated
   // to/from the orientation of the video.
   bool video_rotate_to_fullscreen_enabled;
   // If enabled, video fullscreen detection will be enabled.
   bool video_fullscreen_detection_enabled;
   bool embedded_media_experience_enabled;
   // Enable 8 (#RRGGBBAA) and 4 (#RGBA) value hex colors in CSS Android
   // WebView quirk (http://crbug.com/618472).
   bool css_hex_alpha_color_enabled;
+  bool enable_media_download_in_product_help;
 #else  // defined(OS_ANDROID)
 #endif  // defined(OS_ANDROID)
 
   // Default (used if the page or UA doesn't override these) values for page
   // scale limits. These are set directly on the WebView so there's no analogue
   // in WebSettings.
   float default_minimum_page_scale_factor;
   float default_maximum_page_scale_factor;
 
   // Whether download UI should be hidden on this page.
@@ skipping 21 matching lines @@
   // chrome, except for the cases where it would require lots of extra work for
   // the embedder to use the same default value.
   WebPreferences();
   WebPreferences(const WebPreferences& other);
   ~WebPreferences();
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_WEB_PREFERENCES_H_