Implement MediaMetadata artwork in content

content/common/android/media_metadata_android.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 "content/common/android/media_metadata_android.h"
 
+#include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "content/public/common/media_metadata.h"
 #include "jni/MediaMetadata_jni.h"
 
 namespace content {
 
+namespace {
+
+std::vector<int> GetFlattenedSizeArray(const std::vector<gfx::Size>& sizes) {
+  std::vector<int> flattened_array;
+  flattened_array.reserve(2 * sizes.size());
+  for (const auto& size : sizes) {
+    flattened_array.push_back(size.width());
+    flattened_array.push_back(size.height());
+  }
+  return flattened_array;
+}
+
+}  // anonymous namespace
+
 // static
 base::android::ScopedJavaLocalRef<jobject>
 MediaMetadataAndroid::CreateJavaObject(
     JNIEnv* env, const MediaMetadata& metadata) {
   ScopedJavaLocalRef<jstring> j_title(
       base::android::ConvertUTF16ToJavaString(env, metadata.title));
   ScopedJavaLocalRef<jstring> j_artist(
       base::android::ConvertUTF16ToJavaString(env, metadata.artist));
   ScopedJavaLocalRef<jstring> j_album(
       base::android::ConvertUTF16ToJavaString(env, metadata.album));
 
-  return Java_MediaMetadata_create(
+  ScopedJavaLocalRef<jobject> j_metadata = Java_MediaMetadata_create(
       env, j_title.obj(), j_artist.obj(), j_album.obj());
+
+  for (const auto& artwork : metadata.artwork) {
+    std::string src = artwork.src.spec();
+    base::string16 type = artwork.type.is_null() ?
+        base::string16() : artwork.type.string();
+    ScopedJavaLocalRef<jstring> j_src(
+        base::android::ConvertUTF8ToJavaString(env, src));
+    ScopedJavaLocalRef<jstring> j_type(
+        base::android::ConvertUTF16ToJavaString(env, type));
+    ScopedJavaLocalRef<jintArray> j_sizes(
+        base::android::ToJavaIntArray(
+            env, GetFlattenedSizeArray(artwork.sizes)));
+
+    Java_MediaMetadata_createAndAddArtwork(
+        env, j_metadata.obj(), j_src.obj(), j_type.obj(), j_sizes.obj());
+  }
+
+  return j_metadata;
 }
 
 // static
 bool MediaMetadataAndroid::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace content