Allow hw secured codecs on chromecast

content/public/common/renderer_preferences.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.
 //
 // A struct for managing browser's settings that apply to the renderer or its
 // webview.  These differ from WebPreferences since they apply to Chromium's
 // glue layer rather than applying to just WebKit.
 //
 // Adding new values to this class probably involves updating
 // common/view_messages.h, browser/browser.cc, etc.
@@ skipping 117 matching lines @@
   bool plugin_fullscreen_allowed;
 
   // Whether video-overlay (hole-punching) should be used for the embedded
   // encrypted video.  Currently only used by Android.
   bool use_video_overlay_for_embedded_encrypted_video;
 
   // Use video-overlay (hole-punching) should be used for all video, not just
   // encrypted video.  Currently only used by Android.
   bool use_view_overlay_for_all_video;
 
+  // Whether hardware secure codec is supported or not. On Android, this is
+  // implied by use_video_overlay_for_embedded_encrypted_video.
+  bool hw_secure_codec_allowed;

[ddorwin, 2016/05/27 21:33:00]

I don't think we should be adding members to this, especially for something that
is not runtime-configurable as is the case for Cast.

Do you even need this now that you have different max robustness levels?

AFAICT, all this does is cause HW_SECURE_CODECS_NOT_ALLOWED to not be added as a
rule. But that only matters if a HW_SECURE_CODECS_REQUIRED rule is added.

So, while not strictly correct (as is the case on other non-Android platforms),
there might be a much simpler way to address this that doesn't involve
addressing the general problem.

+
   // Country iso of the mobile network for content detection purpose.
   std::string network_contry_iso;
 
 #if defined(OS_WIN)
   // The default system font settings for caption, small caption, menu and
   // status messages. Used only by Windows.
   base::string16 caption_font_family_name;
   int32_t caption_font_height;
 
   base::string16 small_caption_font_family_name;
@@ skipping 21 matching lines @@
   int32_t arrow_bitmap_width_horizontal_scroll_bar_in_dips;
 #endif
 
   // The default font size used for rendering on Linux.
   int default_font_size;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_RENDERER_PREFERENCES_H_