Autoplay: use an autoplay policy setting in Blink.

third_party/WebKit/Source/web/AssertMatchingEnums.cpp

Index: third_party/WebKit/Source/web/AssertMatchingEnums.cpp
diff --git a/third_party/WebKit/Source/web/AssertMatchingEnums.cpp b/third_party/WebKit/Source/web/AssertMatchingEnums.cpp
index 566fa9342c7a956fb9c28144235f8dacdd96fe1a..bc818bbcf5669b06f56fa9504bc679ba7b857509 100644
--- a/third_party/WebKit/Source/web/AssertMatchingEnums.cpp
+++ b/third_party/WebKit/Source/web/AssertMatchingEnums.cpp
@@ -50,6 +50,7 @@
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLMediaElement.h"
 #include "core/html/forms/TextControlInnerElements.h"
+#include "core/html/media/AutoplayPolicy.h"
 #include "core/layout/compositing/CompositedSelectionBound.h"
 #include "core/loader/FrameLoaderTypes.h"
 #include "core/loader/NavigationPolicy.h"
@@ -887,6 +888,14 @@ STATIC_ASSERT_ENUM(
     WebSettings::ProgressBarCompletion::kResourcesBeforeDCLAndSameOriginIFrames,
     ProgressBarCompletion::kResourcesBeforeDCLAndSameOriginIFrames);
 
+STATIC_ASSERT_ENUM(WebSettings::AutoplayPolicy::kNoUserGestureRequired,
+                   AutoplayPolicy::Type::kNoUserGestureRequired);
+STATIC_ASSERT_ENUM(WebSettings::AutoplayPolicy::kUserGestureRequired,
+                   AutoplayPolicy::Type::kUserGestureRequired);
+STATIC_ASSERT_ENUM(
+    WebSettings::AutoplayPolicy::kUserGestureRequiredForCrossOrigin,
+    AutoplayPolicy::Type::kUserGestureRequiredForCrossOrigin);
+
 // This ensures that the version number published in
 // WebSerializedScriptValueVersion.h matches the serializer's understanding.
 // TODO(jbroman): Fix this to also account for the V8-side version. See