disable using codecs until that can work in chrome

src/c/sk_surface.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "sk_canvas.h"
 #include "sk_data.h"
 #include "sk_image.h"
@@ skipping 215 matching lines @@
     SkImageInfo info;
     if (!from_c_info(*cinfo, &info)) {
         return NULL;
     }
     return (sk_image_t*)SkImage::NewRasterCopy(info, pixels, rowBytes);
 }
 
 #include "SkDecodingImageGenerator.h"
 
 sk_image_t* sk_image_new_from_data(const sk_data_t* cdata) {
-    SkImageGenerator* gen = SkDecodingImageGenerator::Create(AsData(cdata),
-                                                             SkDecodingImageGenerator::Options());
+    SkImageGenerator* gen = NULL;
+#if 0

[scroggo, 2014/12/30 11:14:33]

Can we use a macro here to only behave this way if we're in Chrome, or more
specifically if we do not have SkDecodingImageGenerator?

(We could use that same macro in cgm.c, which would cover my concerns there.)

[reed1, 2015/01/05 16:04:59]

The #if 0 is meant to be (very) temporary, as I hope to enable codecs in chrome
asap.

+    // enable this when SkDecodingImageGenerator is available in chrome (decode codecs)
+    gen = SkDecodingImageGenerator::Create(AsData(cdata), SkDecodingImageGenerator::Options());
+#endif
     if (NULL == gen) {
         return NULL;
     }
     return ToImage(SkImage::NewFromGenerator(gen));
 }
 
 sk_data_t* sk_image_encode(const sk_image_t* cimage) {
     return ToData(AsImage(cimage)->encode());
 }
 
@@ skipping 439 matching lines @@
     sk_image_t* cimage = sk_surface_new_image_snapshot(csurface);
     
     // HERE WE CROSS THE C..C++ boundary
     canvas->drawImage((const SkImage*)cimage, 20, 20, NULL);
     
     sk_path_delete(cpath);
     sk_paint_delete(cpaint);
     sk_image_unref(cimage);
     sk_surface_unref(csurface);
 }