[cc] Rename all cc/ filenames to Chromium style

cc/io_surface_draw_quad.cc

 // Copyright 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 "config.h"
 
 #include "CCIOSurfaceDrawQuad.h"
 
 namespace cc {
 
@@ skipping 10 matching lines @@
 {
 }
 
 const CCIOSurfaceDrawQuad* CCIOSurfaceDrawQuad::materialCast(const CCDrawQuad* quad)
 {
     ASSERT(quad->material() == CCDrawQuad::IOSurfaceContent);
     return static_cast<const CCIOSurfaceDrawQuad*>(quad);
 }
 
 }  // namespace cc