Pass the user_gesture context in the IPC message FrameMsg_CommitNavigation to the renderer.

content/browser/frame_host/navigation_entry_impl.cc

Index: content/browser/frame_host/navigation_entry_impl.cc
diff --git a/content/browser/frame_host/navigation_entry_impl.cc b/content/browser/frame_host/navigation_entry_impl.cc
index fbf56542c1609eae1051a8926899c51de2ef4d93..b99d76927214b43d7f590d5bffa5e430f9ac7f92 100644
--- a/content/browser/frame_host/navigation_entry_impl.cc
+++ b/content/browser/frame_host/navigation_entry_impl.cc
@@ -680,9 +680,6 @@ CommonNavigationParams NavigationEntryImpl::ConstructCommonNavigationParams(
 StartNavigationParams NavigationEntryImpl::ConstructStartNavigationParams()
     const {
   return StartNavigationParams(extra_headers(),
-#if defined(OS_ANDROID)
-                               has_user_gesture(),
-#endif
                                transferred_global_request_id().child_id,
                                transferred_global_request_id().request_id);
 }
@@ -716,13 +713,17 @@ RequestNavigationParams NavigationEntryImpl::ConstructRequestNavigationParams(
     current_length_to_send = 0;
   }
 
+  bool user_gesture = false;
+#if defined(OS_ANDROID)
+  user_gesture = has_user_gesture();

[nasko, 2016/09/30 20:21:47]

I wonder why this needs to be only for Android, but it is orthogonal to your CL.

+#endif
   RequestNavigationParams request_params(
       GetIsOverridingUserAgent(), redirects, GetCanLoadLocalResources(),
       base::Time::Now(), frame_entry.page_state(), GetPageID(), GetUniqueID(),
       is_same_document_history_load, is_history_navigation_in_new_child,
       has_subtree_history_items, has_committed_real_load, intended_as_new_entry,
       pending_offset_to_send, current_offset_to_send, current_length_to_send,
-      IsViewSourceMode(), should_clear_history_list());
+      IsViewSourceMode(), should_clear_history_list(), user_gesture);
 #if defined(OS_ANDROID)
   if (GetDataURLAsString() &&
       GetDataURLAsString()->size() <= kMaxLengthOfDataURLString) {