Pass information to ppapi plugin if a mouse button was pressed during...

Pass information to ppapi plugin if a mouse button was pressed during MouseMove event. This patch requiers a separate patch I submitted to blink.

BUG=179054
TEST=Load the 2d or input example plugins and try to draw in them.

Review URL: https://chromiumcodereview.appspot.com/14324006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@195444 0039d316-1c4b-4281-b951-d872f2087c98

AUTHORS

@@ -238,3 +238,5 @@ Raphael Kubo da Costa <raphael.kubo.da.costa@intel.com>
 Yandex LLC <*@yandex-team.ru>
 Yoshinori Sano <yoshinori.sano@gmail.com>
 Mrunal Kapade <mrunal.kapade@intel.com>
+Yael Aharon <yael.aharon@intel.com>
+

webkit/plugins/ppapi/event_conversion.cc

@@ -191,6 +191,7 @@ void AppendMouseEvent(const WebInputEvent& event,
   InputEventData result = GetEventWithCommonFieldsAndType(event);
   result.event_modifiers = mouse_event.modifiers;
   if (mouse_event.type == WebInputEvent::MouseDown ||
+      mouse_event.type == WebInputEvent::MouseMove ||
       mouse_event.type == WebInputEvent::MouseUp) {
     result.mouse_button =
         static_cast<PP_InputEvent_MouseButton>(mouse_event.button);