Delete copy_texture_to_parent_texture from GPU command buffer code.

gpu/command_buffer/build_gles2_cmd_buffer.py

Index: gpu/command_buffer/build_gles2_cmd_buffer.py
===================================================================
--- gpu/command_buffer/build_gles2_cmd_buffer.py	(revision 95857)
+++ gpu/command_buffer/build_gles2_cmd_buffer.py	(working copy)
@@ -213,7 +213,6 @@
 GL_APICALL void         GL_APIENTRY glUnmapBufferSubDataCHROMIUM (const void* mem);
 GL_APICALL void*        GL_APIENTRY glMapTexSubImage2DCHROMIUM (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, GLenum access);
 GL_APICALL void         GL_APIENTRY glUnmapTexSubImage2DCHROMIUM (const void* mem);
-GL_APICALL void         GL_APIENTRY glCopyTextureToParentTextureCHROMIUM (GLidBindTexture client_child_id, GLidBindTexture client_parent_id);
 GL_APICALL void         GL_APIENTRY glResizeCHROMIUM (GLuint width, GLuint height);
 GL_APICALL const GLchar* GL_APIENTRY glGetRequestableExtensionsCHROMIUM (void);
 GL_APICALL void         GL_APIENTRY glRequestExtensionCHROMIUM (const char* extension);
@@ -420,7 +419,6 @@
   'CompressedTexSubImage2DBucket':                             444,
   'RenderbufferStorageMultisampleEXT':                         445,
   'BlitFramebufferEXT':                                        446,
-  'CopyTextureToParentTextureCHROMIUM':                        447,
   'ResizeCHROMIUM':                                            448,
   'GetRequestableExtensionsCHROMIUM':                          449,
   'RequestExtensionCHROMIUM':                                  450,
@@ -1722,13 +1720,6 @@
       'cmd_args': 'GLuint indx, GLint size, GLenum type, GLboolean normalized, '
                   'GLsizei stride, GLuint offset',
   },
-  'CopyTextureToParentTextureCHROMIUM': {
-      'impl_func': False,
-      'decoder_func': 'DoCopyTextureToParentTextureCHROMIUM',
-      'unit_test': False,
-      'extension': True,
-      'chromium': True,
-  },
   'ResizeCHROMIUM': {
       'decoder_func': 'DoResizeCHROMIUM',
       'unit_test': False,