Addition of GL_CHROMIUM_copy_texture extension.

gpu/command_buffer/service/texture_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_TEXTURE_MANAGER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_TEXTURE_MANAGER_H_
 
 #include <vector>
 #include "base/basictypes.h"
 #include "base/hash_tables.h"
@@ skipping 123 matching lines @@
 
     bool SafeToRenderFrom() const {
       return cleared_;
     }
 
     // Get the width and height for a particular level. Returns false if level
     // does not exist.
     bool GetLevelSize(
         GLint face, GLint level, GLsizei* width, GLsizei* height) const;
 
+    // Set the width and height for a particular level. Returns false if level
+    // does not exist.
+    bool SetLevelSize(GLint face, GLint level, GLsizei width, GLsizei height);

[greggman, 2012/04/17 04:58:06]

I'm sorry Jeff,I should have been paying more attention.

You'll need to make this private and then make a corresponding
TextureManager::SetLevelSize(TextureInfo* info, GLint face, GLint level, GLsizei
width, GLsizei height);

The reason is there is bookkeeping in TextureManager to see if any textures are
breaking any rules. See TextureManager::SetLevelInfo

[Jeff Timanus, 2012/04/18 14:59:08]

I took your suggestion, and reverted these changes.  SetLevelInfo is now called
directly from the DoCopyTextureCHROMIUM handler.

+
     // Get the type of a level. Returns false if level does not exist.
     bool GetLevelType(
         GLint face, GLint level, GLenum* type, GLenum* internal_format) const;
 
     bool IsDeleted() const {
       return deleted_;
     }
 
     // Returns true of the given dimensions are inside the dimensions of the
     // level and if the format and type match the level.
@@ skipping 400 matching lines @@
   // The default textures for each target (texture name = 0)
   TextureInfo::Ref default_textures_[kNumDefaultTextures];
 
   DISALLOW_COPY_AND_ASSIGN(TextureManager);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_TEXTURE_MANAGER_H_