App list: Change some colours to match the new specs.

ui/app_list/views/app_list_background.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/views/app_list_background.h"
 
 #include "base/command_line.h"
 #include "third_party/skia/include/core/SkPaint.h"
 #include "third_party/skia/include/core/SkPath.h"
 #include "ui/app_list/app_list_constants.h"
@@ skipping 40 matching lines @@
 
   SkPaint paint;
   paint.setStyle(SkPaint::kFill_Style);
 
   int contents_top = bounds.y();
   views::View* search_box_view = main_view_->search_box_view();
   if (main_view_->visible() && search_box_view->visible() &&
       !app_list::switches::IsExperimentalAppListEnabled()) {
     const gfx::Rect search_box_view_bounds =
         search_box_view->ConvertRectToWidget(search_box_view->GetLocalBounds());
-    gfx::Rect search_box_rect(bounds.x(),
-                              bounds.y(),
-                              bounds.width(),
-                              search_box_view_bounds.bottom() - bounds.y());
+    gfx::Rect search_box_rect(
+        bounds.x(),
+        bounds.y(),
+        bounds.width(),
+        search_box_view_bounds.bottom() - bounds.y() + kTopSeparatorSize);
 
     paint.setColor(kSearchBoxBackground);
     canvas->DrawRect(search_box_rect, paint);
 
     gfx::Rect separator_rect(search_box_rect);
-    separator_rect.set_y(separator_rect.bottom());
-    separator_rect.set_height(kTopSeparatorSize);
+    separator_rect.Inset(0, search_box_rect.height() - kTopSeparatorSize, 0, 0);
     canvas->FillRect(separator_rect, kTopSeparatorColor);
     contents_top = separator_rect.bottom();
   }
 
   gfx::Rect contents_rect(bounds.x(),
                           contents_top,
                           bounds.width(),
                           bounds.bottom() - contents_top);
 
   paint.setColor(kContentsBackgroundColor);
@@ skipping 10 matching lines @@
       separator_rect.set_y(contents_view_view_bounds.bottom() - 1);
       separator_rect.set_height(kBottomSeparatorSize);
       canvas->FillRect(separator_rect, kBottomSeparatorColor);
     }
   }
 
   canvas->Restore();
 }
 
 }  // namespace app_list