app_list: Make first col move for invalid page switch attempt.

ui/app_list/apps_grid_view.cc

 // Copyright (c) 2012 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 "ui/app_list/apps_grid_view.h"
 
 #include <algorithm>
 
 #include "ui/app_list/app_list_item_view.h"
 #include "ui/app_list/pagination_model.h"
@@ skipping 131 matching lines @@
     else if (i > last_visible_index)
       x_offset = page_width;
 
     int page = i / tiles_per_page();
     if (is_valid) {
       if (page == current_page || page == transition.target_page)
         x_offset += transition_offset;
     } else {
       const int col = i % cols_;
       if (transition_offset > 0)
-        x_offset += transition_offset * col;
+        x_offset += transition_offset * (col + 1);
       else
-        x_offset += transition_offset * (cols_ - col - 1);
+        x_offset += transition_offset * (cols_ - col);
     }
 
     gfx::Rect adjusted_slot(tile_slot);
     adjusted_slot.Offset(x_offset, 0);
     view->SetBoundsRect(adjusted_slot);
 
     tile_slot.Offset(tile_size.width(), 0);
     if ((i + 1) % tiles_per_page() == 0) {
       tile_slot.set_origin(grid_rect.origin());
     } else if ((i + 1) % cols_ == 0) {
@@ skipping 146 matching lines @@
 
 void AppsGridView::SelectedPageChanged(int old_selected, int new_selected) {
   Layout();
 }
 
 void AppsGridView::TransitionChanged() {
   Layout();
 }
 
 }  // namespace app_list