Move AutoplayPolicy enum to an own file

To reduce including a heavy web_preferences.h only when
we need to use AutoplayPolicy enum, this CL moves
AutoplayPolicy enum to autoplay_policy.h file.

Bug: 919392
Change-Id: I0775d15052d679a06fd49c3586c9c789fa4e7894
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2418757Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Colin Blundell <blundell@chromium.org>
Commit-Queue: Gyuyoung Kim <gyuyoung@igalia.com>
Cr-Commit-Position: refs/heads/master@{#808864}

chrome/browser/chrome_content_browser_client.cc

@@ -350,6 +350,7 @@
 #include "third_party/blink/public/common/loader/referrer_utils.h"
 #include "third_party/blink/public/common/loader/url_loader_throttle.h"
 #include "third_party/blink/public/common/switches.h"
+#include "third_party/blink/public/common/web_preferences/autoplay_policy.h"
 #include "third_party/blink/public/common/web_preferences/image_animation_policy.h"
 #include "third_party/blink/public/mojom/renderer_preferences.mojom.h"
 #include "third_party/blink/public/mojom/site_engagement/site_engagement.mojom.h"

chromecast/browser/webview/webview_controller.cc

@@ -23,7 +23,7 @@
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents.h"
-#include "third_party/blink/public/common/web_preferences/web_preferences.h"
+#include "third_party/blink/public/common/web_preferences/autoplay_policy.h"
 
 namespace chromecast {
 

third_party/blink/public/common/BUILD.gn

@@ -184,6 +184,7 @@ source_set("headers") {
     "web_cache/web_cache_resource_type_stats.h",
     "web_package/signed_exchange_consts.h",
     "web_package/web_package_request_matcher.h",
+    "web_preferences/autoplay_policy.h",
     "web_preferences/editing_behavior_types.h",
     "web_preferences/image_animation_policy.h",
     "web_preferences/web_preferences.h",

third_party/blink/public/common/web_preferences/autoplay_policy.h

+// Copyright 2020 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 THIRD_PARTY_BLINK_PUBLIC_COMMON_WEB_PREFERENCES_AUTOPLAY_POLICY_H_
+#define THIRD_PARTY_BLINK_PUBLIC_COMMON_WEB_PREFERENCES_AUTOPLAY_POLICY_H_
+
+namespace blink {
+namespace web_pref {
+
+// Defines the autoplay policy to be used.
+enum class AutoplayPolicy {
+  kNoUserGestureRequired,
+  kUserGestureRequired,
+  kDocumentUserActivationRequired,
+};
+
+}  // namespace web_pref
+}  // namespace blink
+
+#endif  // THIRD_PARTY_BLINK_PUBLIC_COMMON_WEB_PREFERENCES_AUTOPLAY_POLICY_H_

third_party/blink/public/common/web_preferences/web_preferences.h

@@ -15,6 +15,7 @@
 #include "net/nqe/effective_connection_type.h"
 #include "third_party/blink/public/common/common_export.h"
 #include "third_party/blink/public/common/css/preferred_color_scheme.h"
+#include "third_party/blink/public/common/web_preferences/autoplay_policy.h"
 #include "third_party/blink/public/common/web_preferences/editing_behavior_types.h"
 #include "third_party/blink/public/common/web_preferences/image_animation_policy.h"
 #include "third_party/blink/public/mojom/v8_cache_options.mojom-forward.h"
@@ -33,14 +34,6 @@ typedef std::map<std::string, base::string16> ScriptFontFamilyMap;
 
 enum class ViewportStyle { DEFAULT, MOBILE, TELEVISION, LAST = TELEVISION };
 
-// Defines the autoplay policy to be used. Should match the class in
-// WebSettings.h.
-enum class AutoplayPolicy {
-  kNoUserGestureRequired,
-  kUserGestureRequired,
-  kDocumentUserActivationRequired,
-};
-
 // The ISO 15924 script code for undetermined script aka Common. It's the
 // default used on WebKit's side to get/set a font setting when no script is
 // specified.