Make GL_CHROMIUM_consistent_uniform_locations slighty more robust

gpu/command_buffer/client/share_group.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_CLIENT_SHARE_GROUP_H_
 #define GPU_COMMAND_BUFFER_CLIENT_SHARE_GROUP_H_
 
 #include <GLES2/gl2.h>
 #include "../client/ref_counted.h"
 #include "../common/gles2_cmd_format.h"
 #include "../common/scoped_ptr.h"
 #include "gles2_impl_export.h"
 
 namespace gpu {
 namespace gles2 {
 
 class GLES2Implementation;
+class GLES2ImplementationTest;
 class ProgramInfoManager;
 
 typedef void (GLES2Implementation::*DeleteFn)(GLsizei n, const GLuint* ids);
 
 // Base class for IdHandlers
 class IdHandlerInterface {
  public:
   IdHandlerInterface() { }
   virtual ~IdHandlerInterface() { }
 
@@ skipping 37 matching lines @@
   IdHandlerInterface* GetIdHandler(int namespace_id) const {
     return id_handlers_[namespace_id].get();
   }
 
   ProgramInfoManager* program_info_manager() {
     return program_info_manager_.get();
   }
 
  private:
   friend class gpu::RefCountedThreadSafe<ShareGroup>;
+  friend class gpu::gles2::GLES2ImplementationTest;
   ~ShareGroup();
 
+  // Install a new program info manager. Used for testing only;
+  void set_program_info_manager(ProgramInfoManager* manager);
+
   scoped_ptr<IdHandlerInterface> id_handlers_[id_namespaces::kNumIdNamespaces];
   scoped_ptr<ProgramInfoManager> program_info_manager_;
 
   // Whether or not this context is sharing resources.
   bool sharing_resources_;
   bool bind_generates_resource_;
 
   GLES2Implementation* gles2_;
 
   DISALLOW_COPY_AND_ASSIGN(ShareGroup);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_SHARE_GROUP_H_