Don't show media controls when there is a persistent video.

content/public/common/web_preferences.cc

 // 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.
 
 #include "content/public/common/web_preferences.h"
 
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "third_party/WebKit/public/web/WebSettings.h"
@@ skipping 191 matching lines @@
       viewport_meta_merge_content_quirk(false),
       viewport_meta_non_user_scalable_quirk(false),
       viewport_meta_zero_values_quirk(false),
       clobber_user_agent_initial_scale_quirk(false),
       ignore_main_frame_overflow_hidden_quirk(false),
       report_screen_size_in_physical_pixels_quirk(false),
       resue_global_for_unowned_main_frame(false),
       progress_bar_completion(ProgressBarCompletion::LOAD_EVENT),
       spellcheck_enabled_by_default(true),
       video_fullscreen_orientation_lock_enabled(false),
+      media_controls_enabled(true),

[nasko, 2017/02/13 22:28:43]

Keep the ordering the same as the header file.

[mlamouri (slow - plz ping), 2017/02/14 11:19:46]

Same as above.

Though, we really should initialise these in the header IMO :)

 #else  // defined(OS_ANDROID)
       cross_origin_media_playback_requires_user_gesture(false),
 #endif  // defined(OS_ANDROID)
 #if defined(OS_ANDROID)
       default_minimum_page_scale_factor(0.25f),
       default_maximum_page_scale_factor(5.f),
 #elif defined(OS_MACOSX)
       default_minimum_page_scale_factor(1.f),
       default_maximum_page_scale_factor(3.f),
 #else
@@ skipping 16 matching lines @@
   pictograph_font_family_map[kCommonScript] =
       base::ASCIIToUTF16("Times New Roman");
 }
 
 WebPreferences::WebPreferences(const WebPreferences& other) = default;
 
 WebPreferences::~WebPreferences() {
 }
 
 }  // namespace content