Disallow active attrib aliasing at shader program link time.

gpu/command_buffer/service/program_manager.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 GPU_COMMAND_BUFFER_SERVICE_PROGRAM_MANAGER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_PROGRAM_MANAGER_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 97 matching lines @@
 
   const AttribInfoVector& GetAttribInfos() const {
     return attrib_infos_;
   }
 
   const VertexAttrib* GetAttribInfo(GLint index) const {
     return (static_cast<size_t>(index) < attrib_infos_.size()) ?
        &attrib_infos_[index] : NULL;
   }
 
-  GLint GetAttribLocation(const std::string& name) const;
+  GLint GetAttribLocation(const std::string& original_name) const;
 
   const VertexAttrib* GetAttribInfoByLocation(GLuint location) const {
     if (location < attrib_location_to_index_map_.size()) {
       GLint index = attrib_location_to_index_map_[location];
       if (index >= 0) {
         return &attrib_infos_[index];
       }
     }
     return NULL;
   }
@@ skipping 305 matching lines @@
 
   uint32 max_varying_vectors_;
 
   DISALLOW_COPY_AND_ASSIGN(ProgramManager);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_PROGRAM_MANAGER_H_