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 cd2e4ee3c26a4033952e5e29b04872a02e0af1a4..a049d455f0e27f8c86873a8f2200a0c90b1bf003 100644
--- a/content/common/frame_messages.h
+++ b/content/common/frame_messages.h
@@ -351,7 +351,7 @@ 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(gesture)
   IPC_STRUCT_TRAITS_MEMBER(skip_service_worker)
   IPC_STRUCT_TRAITS_MEMBER(request_context_type)
   IPC_STRUCT_TRAITS_MEMBER(searchable_form_url)
@@ -390,7 +390,7 @@ 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)
+  IPC_STRUCT_TRAITS_MEMBER(gesture)
 #if defined(OS_ANDROID)
   IPC_STRUCT_TRAITS_MEMBER(data_url_as_string)
 #endif
@@ -961,9 +961,10 @@ 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,