Move persistent gesture state to Document, add DocumentUserGestureToken

third_party/WebKit/Source/core/input/KeyboardEventManager.cpp

Index: third_party/WebKit/Source/core/input/KeyboardEventManager.cpp
diff --git a/third_party/WebKit/Source/core/input/KeyboardEventManager.cpp b/third_party/WebKit/Source/core/input/KeyboardEventManager.cpp
index eaa25b9ba498ad7754f8eb809e77f5180d1eb79d..c1c00a7c9b6d3ac08908c124baeb3c3877692100 100644
--- a/third_party/WebKit/Source/core/input/KeyboardEventManager.cpp
+++ b/third_party/WebKit/Source/core/input/KeyboardEventManager.cpp
@@ -4,6 +4,7 @@
 
 #include "KeyboardEventManager.h"
 
+#include "core/dom/DocumentUserGestureToken.h"
 #include "core/dom/Element.h"
 #include "core/editing/Editor.h"
 #include "core/events/KeyboardEvent.h"
@@ -104,7 +105,8 @@ WebInputEventResult KeyboardEventManager::keyEvent(
   if (!node)
     return WebInputEventResult::NotHandled;
 
-  UserGestureIndicator gestureIndicator(UserGestureToken::create());
+  UserGestureIndicator gestureIndicator(
+      DocumentUserGestureToken::create(m_frame->document()));
 
   // In IE, access keys are special, they are handled after default keydown
   // processing, but cannot be canceled - this is hard to match.  On Mac OS X,