Remove code doing a no-op due to float -> int rounding.

chrome/browser/gtk/bookmark_manager_gtk.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/gtk/bookmark_manager_gtk.h"
 
 #include <gdk/gdkkeysyms.h>
 #include <vector>
 
 #include "app/gtk_dnd_util.h"
@@ skipping 1167 matching lines @@
   // If a user double clicks, we will get two button presses in a row without
   // any intervening mouse up, hence we must flush delayed mousedowns here as
   // well as in the button release handler.
   if (bm->delaying_mousedown_) {
     bm->SendDelayedMousedown();
     return FALSE;
   }
 
   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;
 
   if (gtk_tree_selection_path_is_selected(bm->right_selection(), path)) {
     bm->mousedown_event_ = *event;
     bm->delaying_mousedown_ = true;
     gtk_tree_path_free(path);
     return TRUE;
   }
 
   gtk_tree_path_free(path);
   return FALSE;
 }
 
 // static
 gboolean BookmarkManagerGtk::OnRightTreeViewMotion(
     GtkWidget* tree_view, GdkEventMotion* event, BookmarkManagerGtk* bm) {
   // This handler is only used for the multi-drag workaround.
   if (!bm->delaying_mousedown_)
     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 |
         GtkDndUtil::TEXT_URI_LIST);
     gtk_drag_begin(tree_view, targets, GDK_ACTION_MOVE,
                    1, reinterpret_cast<GdkEvent*>(event));
     // The drag adds a ref; let it own the list.
     gtk_target_list_unref(targets);
   }
 
@@ skipping 190 matching lines @@
       modifier & gtk_accelerator_get_default_mod_mask());
   // The only accelerator we have registered is ctrl+w, so any other value is a
   // non-fatal error.
   DCHECK_EQ(keyval, static_cast<guint>(GDK_w));
   DCHECK_EQ(modifier, GDK_CONTROL_MASK);
 
   gtk_widget_destroy(bookmark_manager->window_);
 
   return TRUE;
 }