Revert of gpu: introduce glCopySubTextureCHROMIUM

gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h

Index: gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h
diff --git a/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h b/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h
index 5c62141149d44f1bf250fd70c68e7bce883d9be1..083fc4c8578131a65f14a6aa4505787379006042 100644
--- a/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h
+++ b/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h
@@ -35,6 +35,7 @@
                      GLuint source_id,
                      GLenum source_internal_format,
                      GLuint dest_id,
+                     GLint dest_level,
                      GLenum dest_internal_format,
                      GLsizei width,
                      GLsizei height,
@@ -42,49 +43,19 @@
                      bool premultiply_alpha,
                      bool unpremultiply_alpha);
 
-  void DoCopySubTexture(const gles2::GLES2Decoder* decoder,
-                        GLenum source_target,
-                        GLuint source_id,
-                        GLenum source_internal_format,
-                        GLuint dest_id,
-                        GLenum dest_internal_format,
-                        GLint xoffset,
-                        GLint yoffset,
-                        GLsizei dest_width,
-                        GLsizei dest_height,
-                        GLsizei source_width,
-                        GLsizei source_height,
-                        bool flip_y,
-                        bool premultiply_alpha,
-                        bool unpremultiply_alpha);
-
   // This will apply a transform on the source texture before copying to
   // destination texture.
   void DoCopyTextureWithTransform(const gles2::GLES2Decoder* decoder,
                                   GLenum source_target,
                                   GLuint source_id,
                                   GLuint dest_id,
+                                  GLint dest_level,
                                   GLsizei width,
                                   GLsizei height,
                                   bool flip_y,
                                   bool premultiply_alpha,
                                   bool unpremultiply_alpha,
                                   const GLfloat transform_matrix[16]);
-
-  void DoCopySubTextureWithTransform(const gles2::GLES2Decoder* decoder,
-                                     GLenum source_target,
-                                     GLuint source_id,
-                                     GLuint dest_id,
-                                     GLint xoffset,
-                                     GLint yoffset,
-                                     GLsizei dest_width,
-                                     GLsizei dest_height,
-                                     GLsizei source_width,
-                                     GLsizei source_height,
-                                     bool flip_y,
-                                     bool premultiply_alpha,
-                                     bool unpremultiply_alpha,
-                                     const GLfloat transform_matrix[16]);
 
   // The attributes used during invocation of the extension.
   static const GLuint kVertexPositionAttrib = 0;
@@ -103,21 +74,6 @@
     GLuint sampler_handle;
   };
 
-  void DoCopyTextureInternal(const gles2::GLES2Decoder* decoder,
-                             GLenum source_target,
-                             GLuint source_id,
-                             GLuint dest_id,
-                             GLint xoffset,
-                             GLint yoffset,
-                             GLsizei dest_width,
-                             GLsizei dest_height,
-                             GLsizei source_width,
-                             GLsizei source_height,
-                             bool flip_y,
-                             bool premultiply_alpha,
-                             bool unpremultiply_alpha,
-                             const GLfloat transform_matrix[16]);
-
   bool initialized_;
   typedef std::vector<GLuint> ShaderVector;
   ShaderVector vertex_shaders_;