Set user_gesture bit at NavigationHandle creation time.

content/common/frame_messages.h

Index: content/common/frame_messages.h
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h
index 844770fd059b3cc6d291f94c16ddbbe8e012ec8c..d2a7c6bf189efc237ff7e44dff4a852cdd954fa3 100644
--- a/content/common/frame_messages.h
+++ b/content/common/frame_messages.h
@@ -339,6 +339,7 @@ IPC_STRUCT_TRAITS_BEGIN(content::CommonNavigationParams)
   IPC_STRUCT_TRAITS_MEMBER(referrer)
   IPC_STRUCT_TRAITS_MEMBER(transition)
   IPC_STRUCT_TRAITS_MEMBER(navigation_type)
+  IPC_STRUCT_TRAITS_MEMBER(gesture)
   IPC_STRUCT_TRAITS_MEMBER(allow_download)
   IPC_STRUCT_TRAITS_MEMBER(should_replace_current_entry)
   IPC_STRUCT_TRAITS_MEMBER(ui_timestamp)
@@ -354,7 +355,6 @@ IPC_STRUCT_TRAITS_END()
 IPC_STRUCT_TRAITS_BEGIN(content::BeginNavigationParams)
   IPC_STRUCT_TRAITS_MEMBER(headers)
   IPC_STRUCT_TRAITS_MEMBER(load_flags)
-  IPC_STRUCT_TRAITS_MEMBER(has_user_gesture)
   IPC_STRUCT_TRAITS_MEMBER(skip_service_worker)
   IPC_STRUCT_TRAITS_MEMBER(request_context_type)
   IPC_STRUCT_TRAITS_MEMBER(searchable_form_url)
@@ -393,7 +393,6 @@ IPC_STRUCT_TRAITS_BEGIN(content::RequestNavigationParams)
   IPC_STRUCT_TRAITS_MEMBER(should_create_service_worker)
   IPC_STRUCT_TRAITS_MEMBER(navigation_timing)
   IPC_STRUCT_TRAITS_MEMBER(service_worker_provider_id)
-  IPC_STRUCT_TRAITS_MEMBER(has_user_gesture)
 #if defined(OS_ANDROID)
   IPC_STRUCT_TRAITS_MEMBER(data_url_as_string)
 #endif
@@ -971,9 +970,10 @@ IPC_MESSAGE_ROUTED2(FrameHostMsg_RenderProcessGone,
 IPC_MESSAGE_ROUTED0(FrameHostMsg_FrameFocused)
 
 // Sent when the renderer starts a provisional load for a frame.
-IPC_MESSAGE_ROUTED2(FrameHostMsg_DidStartProvisionalLoad,
+IPC_MESSAGE_ROUTED3(FrameHostMsg_DidStartProvisionalLoad,
                     GURL /* url */,
-                    base::TimeTicks /* navigation_start */)
+                    base::TimeTicks /* navigation_start */,
+                    content::NavigationGesture /* gesture */)
 
 // Sent when the renderer fails a provisional load with an error.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_DidFailProvisionalLoadWithError,