Fix behavior of GetOriginalNameFromHashedName

gpu/command_buffer/service/shader_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_SHADER_MANAGER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_SHADER_MANAGER_H_
 
 #include <string>
 
 #include "base/containers/hash_tables.h"
@@ skipping 106 matching lines @@
       const std::string& original_name) const;
 
   // If the original_name is not found, return NULL.
   const std::string* GetOutputVariableMappedName(
       const std::string& original_name) const;
 
   // If the hashed_name is not found, return NULL.
   const std::string* GetOriginalNameFromHashedName(
       const std::string& hashed_name) const;
 
-  const std::string* GetMappedName(
-      const std::string& original_name) const;
-
   const std::string& log_info() const {
     return log_info_;
   }
 
   bool valid() const {
     return shader_state_ == kShaderStateCompiled && valid_;
   }
 
   bool IsDeleted() const {
     return marked_for_deletion_;
@@ skipping 176 matching lines @@
   ProgressReporter* progress_reporter_;
 
   DISALLOW_COPY_AND_ASSIGN(ShaderManager);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_SHADER_MANAGER_H_