move image converter to gin (#19655)

shell/common/gin_converters/image_converter.cc

@@ -0,0 +1,44 @@
+// Copyright (c) 2019 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "shell/common/gin_converters/image_converter.h"
+
+#include "shell/common/api/atom_api_native_image.h"
+#include "shell/common/gin_converters/file_path_converter.h"
+#include "ui/gfx/image/image_skia.h"
+
+namespace gin {
+
+bool Converter<gfx::ImageSkia>::FromV8(v8::Isolate* isolate,
+                                       v8::Local<v8::Value> val,
+                                       gfx::ImageSkia* out) {
+  gfx::Image image;
+  if (!ConvertFromV8(isolate, val, &image))
+    return false;
+
+  *out = image.AsImageSkia();
+  return true;
+}
+
+bool Converter<gfx::Image>::FromV8(v8::Isolate* isolate,
+                                   v8::Local<v8::Value> val,
+                                   gfx::Image* out) {
+  if (val->IsNull())
+    return true;
+
+  // TODO(deermichel): remove mate:: after dropping mate
+  mate::Handle<electron::api::NativeImage> native_image;
+  if (!mate::ConvertFromV8(isolate, val, &native_image))
+    return false;
+
+  *out = native_image->image();
+  return true;
+}
+
+v8::Local<v8::Value> Converter<gfx::Image>::ToV8(v8::Isolate* isolate,
+                                                 const gfx::Image& val) {
+  return ConvertToV8(isolate, electron::api::NativeImage::Create(isolate, val));
+}
+
+}  // namespace gin