Add support for touch-action: manipulation

content/common/input_messages.h

 // Copyright (c) 2013 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.
 
 // IPC messages for input events and other messages that require processing in
 // order relative to input events.
 // Multiply-included message file, hence no include guard.
 
 #include "base/strings/string16.h"
 #include "content/common/content_export.h"
@@ skipping 25 matching lines @@
 #define IPC_MESSAGE_START InputMsgStart
 
 IPC_ENUM_TRAITS_MAX_VALUE(content::InputEventAckState,
                           content::INPUT_EVENT_ACK_STATE_MAX)
 IPC_ENUM_TRAITS_MAX_VALUE(
     content::SyntheticGestureParams::GestureSourceType,
     content::SyntheticGestureParams::GESTURE_SOURCE_TYPE_MAX)
 IPC_ENUM_TRAITS_MAX_VALUE(
     content::SyntheticGestureParams::GestureType,
     content::SyntheticGestureParams::SYNTHETIC_GESTURE_TYPE_MAX)
-IPC_ENUM_TRAITS_MAX_VALUE(content::TouchAction,
-    content::TOUCH_ACTION_MAX)
+IPC_ENUM_TRAITS_VALIDATE(content::TouchAction, (
+    value >= 0 &&
+    value <= content::TOUCH_ACTION_MAX &&
+    (!(value & content::TOUCH_ACTION_NONE) ||
+        (value == content::TOUCH_ACTION_NONE)) &&
+    (!(value & content::TOUCH_ACTION_PINCH_ZOOM) ||
+        (value == content::TOUCH_ACTION_MANIPULATION))))
 
 IPC_STRUCT_TRAITS_BEGIN(content::EditCommand)
   IPC_STRUCT_TRAITS_MEMBER(name)
   IPC_STRUCT_TRAITS_MEMBER(value)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::InputEvent)
   IPC_STRUCT_TRAITS_MEMBER(web_event)
   IPC_STRUCT_TRAITS_MEMBER(latency_info)
   IPC_STRUCT_TRAITS_MEMBER(is_keyboard_shortcut)
@@ skipping 128 matching lines @@
                     content::SyntheticGesturePacket)
 
 // Notifies the allowed touch actions for a new touch point.
 IPC_MESSAGE_ROUTED1(InputHostMsg_SetTouchAction,
                     content::TouchAction /* touch_action */)
 
 // Adding a new message? Stick to the sort order above: first platform
 // independent InputMsg, then ifdefs for platform specific InputMsg, then
 // platform independent InputHostMsg, then ifdefs for platform specific
 // InputHostMsg.