Initial browser-side implementation for touch-action

content/common/view_messages.h

Index: content/common/view_messages.h
diff --git a/content/common/view_messages.h b/content/common/view_messages.h
index 356d33f4e10f18ad3f6378e3b1a232ffb282eeff..7f3da0b7d492d1814d6a7a9133631b68ed14fa03 100644
--- a/content/common/view_messages.h
+++ b/content/common/view_messages.h
@@ -33,6 +33,7 @@
 #include "content/public/common/renderer_preferences.h"
 #include "content/public/common/stop_find_action.h"
 #include "content/public/common/three_d_api_types.h"
+#include "content/public/common/touch_action.h"
 #include "content/public/common/window_container_type.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_message_macros.h"
@@ -90,6 +91,7 @@ IPC_ENUM_TRAITS_MAX_VALUE(content::TapMultipleTargetsStrategy,
                           content::TAP_MULTIPLE_TARGETS_STRATEGY_MAX)
 IPC_ENUM_TRAITS(content::StopFindAction)
 IPC_ENUM_TRAITS(content::ThreeDAPIType)
+IPC_ENUM_TRAITS(content::TouchAction)
 IPC_ENUM_TRAITS(media::ChannelLayout)
 IPC_ENUM_TRAITS(media::MediaLogEvent::Type)
 IPC_ENUM_TRAITS(ui::MenuSourceType)
@@ -1859,6 +1861,11 @@ IPC_MESSAGE_ROUTED1(ViewHostMsg_DidChangeNumWheelEvents,
 IPC_MESSAGE_ROUTED1(ViewHostMsg_HasTouchEventHandlers,
                     bool /* has_handlers */)
 
+// Notifies the allowed touch actions for a new touch point.
+IPC_MESSAGE_ROUTED2(ViewHostMsg_SetTouchAction,

[jdduke (slow), 2013/11/18 15:56:00]

Could we make this an InputHostMsg and put in
content/common/input/input_messages.h?

[Rick Byers, 2013/11/19 22:14:59]

Done.  I saw this as similar to ViewHostMsg_HasTouchEventHandlers - wasn't sure
why that was a ViewHostMsg.  I could move it here too if you like.

[jdduke (slow), 2013/11/20 00:35:23]

Ah, you're right of course.  I've been meaning to change that, but as long as we
already handle ViewHostMsg types in the router I'm fine with either ViewHost or
InputHost prefixes.

+                    int /* touch_id */,
+                    content::TouchAction /* touch_actions */)
+
 // A message from HTML-based UI.  When (trusted) Javascript calls
 // send(message, args), this message is sent to the browser.
 IPC_MESSAGE_ROUTED3(ViewHostMsg_WebUISend,