Make autoplay policies no longer platform dependant.

content/public/common/common_param_traits_macros.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.
 
 // Singly or Multiply-included shared traits file depending on circumstances.
 // This allows the use of IPC serialization macros in more than one IPC message
 // file.
 #ifndef CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_MACROS_H_
 #define CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_MACROS_H_
 
@@ skipping 57 matching lines @@
                               ui::POINTER_TYPE_LAST)
 IPC_ENUM_TRAITS_MIN_MAX_VALUE(ui::HoverType,
                               ui::HOVER_TYPE_FIRST,
                               ui::HOVER_TYPE_LAST)
 IPC_ENUM_TRAITS_MIN_MAX_VALUE(content::ImageAnimationPolicy,
                               content::IMAGE_ANIMATION_POLICY_ALLOWED,
                               content::IMAGE_ANIMATION_POLICY_NO_ANIMATION)
 IPC_ENUM_TRAITS_MIN_MAX_VALUE(content::ViewportStyle,
                               content::ViewportStyle::DEFAULT,
                               content::ViewportStyle::LAST)
+IPC_ENUM_TRAITS_MIN_MAX_VALUE(content::AutoplayPolicy,
+                              content::AutoplayPolicy::kNoUserGestureRequired,
+                              content::AutoplayPolicy::kUserGestureRequired);
 
 IPC_STRUCT_TRAITS_BEGIN(blink::WebPoint)
   IPC_STRUCT_TRAITS_MEMBER(x)
   IPC_STRUCT_TRAITS_MEMBER(y)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(blink::WebRect)
   IPC_STRUCT_TRAITS_MEMBER(x)
   IPC_STRUCT_TRAITS_MEMBER(y)
   IPC_STRUCT_TRAITS_MEMBER(width)
@@ skipping 125 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(expensive_background_throttling_initial_budget)
   IPC_STRUCT_TRAITS_MEMBER(expensive_background_throttling_max_budget)
   IPC_STRUCT_TRAITS_MEMBER(expensive_background_throttling_max_delay)
 #if defined(OS_ANDROID)
   IPC_STRUCT_TRAITS_MEMBER(text_autosizing_enabled)
   IPC_STRUCT_TRAITS_MEMBER(font_scale_factor)
   IPC_STRUCT_TRAITS_MEMBER(device_scale_adjustment)
   IPC_STRUCT_TRAITS_MEMBER(force_enable_zoom)
   IPC_STRUCT_TRAITS_MEMBER(fullscreen_supported)
   IPC_STRUCT_TRAITS_MEMBER(double_tap_to_zoom_enabled)
-  IPC_STRUCT_TRAITS_MEMBER(user_gesture_required_for_media_playback)
   IPC_STRUCT_TRAITS_MEMBER(media_playback_gesture_whitelist_scope)
   IPC_STRUCT_TRAITS_MEMBER(default_video_poster_url)
   IPC_STRUCT_TRAITS_MEMBER(support_deprecated_target_density_dpi)
   IPC_STRUCT_TRAITS_MEMBER(use_legacy_background_size_shorthand_behavior)
   IPC_STRUCT_TRAITS_MEMBER(wide_viewport_quirk)
   IPC_STRUCT_TRAITS_MEMBER(use_wide_viewport)
   IPC_STRUCT_TRAITS_MEMBER(force_zero_layout_height)
   IPC_STRUCT_TRAITS_MEMBER(viewport_meta_layout_size_quirk)
   IPC_STRUCT_TRAITS_MEMBER(viewport_meta_merge_content_quirk)
   IPC_STRUCT_TRAITS_MEMBER(viewport_meta_non_user_scalable_quirk)
   IPC_STRUCT_TRAITS_MEMBER(viewport_meta_zero_values_quirk)
   IPC_STRUCT_TRAITS_MEMBER(clobber_user_agent_initial_scale_quirk)
   IPC_STRUCT_TRAITS_MEMBER(ignore_main_frame_overflow_hidden_quirk)
   IPC_STRUCT_TRAITS_MEMBER(report_screen_size_in_physical_pixels_quirk)
   IPC_STRUCT_TRAITS_MEMBER(resue_global_for_unowned_main_frame)
   IPC_STRUCT_TRAITS_MEMBER(progress_bar_completion)
   IPC_STRUCT_TRAITS_MEMBER(spellcheck_enabled_by_default)
   IPC_STRUCT_TRAITS_MEMBER(video_fullscreen_orientation_lock_enabled)
   IPC_STRUCT_TRAITS_MEMBER(video_fullscreen_detection_enabled)
   IPC_STRUCT_TRAITS_MEMBER(embedded_media_experience_enabled)
-#else  // defined(OS_ANDROID)
-  IPC_STRUCT_TRAITS_MEMBER(cross_origin_media_playback_requires_user_gesture)
 #endif  // defined(OS_ANDROID)
   IPC_STRUCT_TRAITS_MEMBER(default_minimum_page_scale_factor)
   IPC_STRUCT_TRAITS_MEMBER(default_maximum_page_scale_factor)
   IPC_STRUCT_TRAITS_MEMBER(hide_download_ui)
   IPC_STRUCT_TRAITS_MEMBER(background_video_track_optimization_enabled)
   IPC_STRUCT_TRAITS_MEMBER(enable_instant_source_buffer_gc)
   IPC_STRUCT_TRAITS_MEMBER(presentation_receiver)
   IPC_STRUCT_TRAITS_MEMBER(media_controls_enabled)
   IPC_STRUCT_TRAITS_MEMBER(do_not_update_selection_on_mutating_selection_range)
+  IPC_STRUCT_TRAITS_MEMBER(autoplay_policy)

[nasko, 2017/04/27 16:52:50]

nit: media_autoplay_policy?

[mlamouri (slow - plz ping), 2017/04/27 21:34:14]

nasko, to me, "autoplay" is for audio/video. What do you associate it with? In
my opinion, it would just make the name longer but I understand I might be
biased :)

[nasko, 2017/04/27 21:42:56]

Do you associate playback with media only or not? I see media_playback_* above,
so my brain automatically categorizes into the media world, so when seeing
autoplay, it expected seeing the prefix.

It is a nit for a reason, it is your call, I don't feel strongly.

 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(blink::mojom::WindowFeatures)
   IPC_STRUCT_TRAITS_MEMBER(x)
   IPC_STRUCT_TRAITS_MEMBER(has_x)
   IPC_STRUCT_TRAITS_MEMBER(y)
   IPC_STRUCT_TRAITS_MEMBER(has_y)
   IPC_STRUCT_TRAITS_MEMBER(width)
   IPC_STRUCT_TRAITS_MEMBER(has_width)
   IPC_STRUCT_TRAITS_MEMBER(height)
@@ skipping 19 matching lines @@
 IPC_ENUM_TRAITS_MAX_VALUE(ui::AXTextAffinity, ui::AX_TEXT_AFFINITY_LAST)
 IPC_ENUM_TRAITS_MAX_VALUE(ui::AXEventFrom, ui::AX_EVENT_FROM_LAST)
 
 IPC_STRUCT_TRAITS_BEGIN(ui::AXRelativeBounds)
   IPC_STRUCT_TRAITS_MEMBER(offset_container_id)
   IPC_STRUCT_TRAITS_MEMBER(bounds)
   IPC_STRUCT_TRAITS_MEMBER(transform)
 IPC_STRUCT_TRAITS_END()
 
 #endif  // CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_MACROS_H_