Make implicit float -> int/long conversions explicit....

chrome/browser/gtk/bookmark_manager_gtk.cc

Index: chrome/browser/gtk/bookmark_manager_gtk.cc
===================================================================
--- chrome/browser/gtk/bookmark_manager_gtk.cc	(revision 25840)
+++ chrome/browser/gtk/bookmark_manager_gtk.cc	(working copy)
@@ -1184,7 +1184,9 @@
 
   GtkTreePath* path;
   gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(tree_view),
-                                event->x, event->y, &path, NULL, NULL, NULL);
+                                static_cast<gint>(event->x),
+                                static_cast<gint>(event->y),
+                                &path, NULL, NULL, NULL);
 
   if (path == NULL)
     return TRUE;
@@ -1208,10 +1210,10 @@
     return FALSE;
 
   if (gtk_drag_check_threshold(tree_view,
-                               bm->mousedown_event_.x,
-                               bm->mousedown_event_.y,
-                               event->x,
-                               event->y)) {
+                               static_cast<gint>(bm->mousedown_event_.x),
+                               static_cast<gint>(bm->mousedown_event_.y),
+                               static_cast<gint>(event->x),
+                               static_cast<gint>(event->y))) {
     bm->delaying_mousedown_ = false;
     GtkTargetList* targets = GtkDndUtil::GetTargetListFromCodeMask(
         GtkDndUtil::CHROME_BOOKMARK_ITEM |