Ignore simulated mouse move messages.

content/browser/renderer_host/render_widget_host_view_win.cc

Index: content/browser/renderer_host/render_widget_host_view_win.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_win.cc b/content/browser/renderer_host/render_widget_host_view_win.cc
index 5b781f0682ba9715a2169f0497ceb36fe0af3074..4ecb13d0065a1418c07f11b05c640ce8bfa5056a 100644
--- a/content/browser/renderer_host/render_widget_host_view_win.cc
+++ b/content/browser/renderer_host/render_widget_host_view_win.cc
@@ -1801,9 +1801,9 @@ LRESULT RenderWidgetHostViewWin::OnMouseEvent(UINT message, WPARAM wparam,
 
   // Windows sends (fake) mouse messages for touch events.  Ignore these since
   // we're processing WM_TOUCH elsewhere.
-  if (touch_events_enabled_ &&
-      (message == WM_LBUTTONDOWN || message == WM_LBUTTONUP ||
-       message == WM_RBUTTONDOWN || message == WM_RBUTTONUP) &&
+  if (touch_events_enabled_ && (message == WM_MOUSEMOVE ||

[sky, 2012/06/12 16:51:51]

The msdn docs this comes from mention it not working for mousemove and I wasn't
seeing consistent behavior when testing this. Are you sure it works ok on both
win7 and win8 with various hardware?

[girard, 2012/06/15 13:57:28]

Tested on Win8.  Will test on Win7 on Monday.

+      message == WM_LBUTTONDOWN || message == WM_LBUTTONUP ||
+      message == WM_RBUTTONDOWN || message == WM_RBUTTONUP) &&
       (GetMessageExtraInfo() & MOUSEEVENTF_FROMTOUCH) ==
       MOUSEEVENTF_FROMTOUCH)
     return 0;