Set desired_image_size when decoding images for NTP Tile icons.

services/image_decoder/image_decoder_impl_unittest.cc

 // Copyright 2016 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.
 
 #include <memory>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/lazy_instance.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 35 matching lines @@
   return true;
 }
 
 class Request {
  public:
   explicit Request(ImageDecoderImpl* decoder) : decoder_(decoder) {}
 
   void DecodeImage(const std::vector<unsigned char>& image, bool shrink) {
     decoder_->DecodeImage(
         image, mojom::ImageCodec::DEFAULT, shrink, kTestMaxImageSize,
+        gfx::Size(),

[Mathieu, 2017/03/01 14:36:23]

add a comment: no preferred size, want the biggest, etc?

[tschumann, 2017/03/01 19:40:08]

it's actually the smallest :-) I added a comment -- in particular because the
code doesn't care.

         base::Bind(&Request::OnRequestDone, base::Unretained(this)));
   }
 
   const SkBitmap& bitmap() const { return bitmap_; }
 
  private:
   void OnRequestDone(const SkBitmap& result_image) { bitmap_ = result_image; }
 
   ImageDecoderImpl* decoder_;
   SkBitmap bitmap_;
@@ skipping 88 matching lines @@
   const char kRandomData[] = "u gycfy7xdjkhfgui bdui ";
   std::vector<unsigned char> jpg(kRandomData,
                                  kRandomData + sizeof(kRandomData));
 
   Request request(decoder());
   request.DecodeImage(jpg, false);
   EXPECT_TRUE(request.bitmap().isNull());
 }
 
 }  // namespace image_decoder