Add glCopyCompressedTextureCHROMIUM

gpu/GLES2/gl2extchromium.h

Index: gpu/GLES2/gl2extchromium.h
diff --git a/gpu/GLES2/gl2extchromium.h b/gpu/GLES2/gl2extchromium.h
index 5ca43fd8dc5a5ae027157d4bf53217388cad0810..af904f3f2d31939c271781afab749bd856087590 100644
--- a/gpu/GLES2/gl2extchromium.h
+++ b/gpu/GLES2/gl2extchromium.h
@@ -431,6 +431,17 @@ typedef void(GL_APIENTRYP PFNGLCOPYSUBTEXTURECHROMIUMPROC)(GLenum target,
                                                            GLsizei height);
 #endif  /* GL_CHROMIUM_copy_texture */
 
+/* GL_CHROMIUM_compressed_copy_texture */
+#ifndef GL_CHROMIUM_compressed_copy_texture
+#define GL_CHROMIUM_compressed_copy_texture 1
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glCompressedCopyTextureCHROMIUM(
+    GLenum target, GLenum source_id, GLenum dest_id);
+#endif
+typedef void(GL_APIENTRYP PFNGLCOMPRESSEDCOPYTEXTURECHROMIUMPROC)(
+    GLenum target, GLenum source_id, GLenum dest_id);
+#endif  /* GL_CHROMIUM_compressed_copy_texture */
+
 /* GL_CHROMIUM_lose_context */
 #ifndef GL_CHROMIUM_lose_context
 #define GL_CHROMIUM_lose_context 1