Fix mismanagement in handling of temporary scanline for vertical flip.

content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h

 // 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.
 
 #ifndef CONTENT_COMMON_GPU_CLIENT_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_
 #define CONTENT_COMMON_GPU_CLIENT_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 527 matching lines @@
 
   // For tracking which FBO is bound.
   WebGLId bound_fbo_;
 
   // Errors raised by synthesizeGLError().
   std::vector<WGC3Denum> synthetic_errors_;
 
   base::WeakPtrFactory<WebGraphicsContext3DCommandBufferImpl> weak_ptr_factory_;
 
 #ifdef FLIP_FRAMEBUFFER_VERTICALLY
-  scoped_array<uint8> scanline_;
+  std::vector<uint8> scanline_;
   void FlipVertically(uint8* framebuffer,
                       unsigned int width,
                       unsigned int height);
 #endif
 };
 
 #endif  // CONTENT_COMMON_GPU_CLIENT_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_