Implement BackgroundFetchManager.fetch() and struct traits

third_party/WebKit/Source/modules/background_fetch/BackgroundFetchTypeConverters.cpp

Index: third_party/WebKit/Source/modules/background_fetch/BackgroundFetchTypeConverters.cpp
diff --git a/third_party/WebKit/Source/modules/background_fetch/BackgroundFetchTypeConverters.cpp b/third_party/WebKit/Source/modules/background_fetch/BackgroundFetchTypeConverters.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..54f0c422e3fb3abed772c324e0b464d10f62e912
--- /dev/null
+++ b/third_party/WebKit/Source/modules/background_fetch/BackgroundFetchTypeConverters.cpp
@@ -0,0 +1,75 @@
+// Copyright 2017 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 "modules/background_fetch/BackgroundFetchTypeConverters.h"
+
+#include <utility>
+#include "modules/background_fetch/BackgroundFetchRegistration.h"
+#include "platform/heap/HeapAllocator.h"
+
+namespace mojo {
+
+blink::BackgroundFetchRegistration*
+TypeConverter<blink::BackgroundFetchRegistration*,
+              blink::mojom::blink::BackgroundFetchRegistrationPtr>::
+    Convert(const blink::mojom::blink::BackgroundFetchRegistrationPtr&
+                mojoRegistration) {
+  if (!mojoRegistration)
+    return nullptr;
+
+  blink::HeapVector<blink::IconDefinition> icons;
+  icons.reserveInitialCapacity(mojoRegistration->icons.size());
+
+  for (const auto& iconPtr : mojoRegistration->icons)
+    icons.push_back(iconPtr.To<blink::IconDefinition>());
+
+  return new blink::BackgroundFetchRegistration(
+      mojoRegistration->tag, std::move(icons),
+      mojoRegistration->total_download_size, mojoRegistration->title);
+}
+
+blink::mojom::blink::BackgroundFetchOptionsPtr TypeConverter<
+    blink::mojom::blink::BackgroundFetchOptionsPtr,
+    blink::BackgroundFetchOptions>::Convert(const blink::BackgroundFetchOptions&
+                                                options) {
+  blink::mojom::blink::BackgroundFetchOptionsPtr mojoOptions =
+      blink::mojom::blink::BackgroundFetchOptions::New();
+
+  WTF::Vector<blink::mojom::blink::IconDefinitionPtr> mojoIcons;
+  mojoIcons.reserveInitialCapacity(options.icons().size());
+
+  for (const auto& icon : options.icons())
+    mojoIcons.push_back(blink::mojom::blink::IconDefinition::From(icon));
+
+  mojoOptions->icons = std::move(mojoIcons);
+  mojoOptions->total_download_size = options.totalDownloadSize();
+  mojoOptions->title = options.title();
+
+  return mojoOptions;
+}
+
+blink::IconDefinition
+TypeConverter<blink::IconDefinition, blink::mojom::blink::IconDefinitionPtr>::
+    Convert(const blink::mojom::blink::IconDefinitionPtr& mojoDefinition) {
+  blink::IconDefinition definition;
+  definition.setSrc(mojoDefinition->src);
+  definition.setSizes(mojoDefinition->sizes);
+  definition.setType(mojoDefinition->type);
+
+  return definition;
+}
+
+blink::mojom::blink::IconDefinitionPtr TypeConverter<
+    blink::mojom::blink::IconDefinitionPtr,
+    blink::IconDefinition>::Convert(const blink::IconDefinition& definition) {
+  blink::mojom::blink::IconDefinitionPtr mojoDefinition =
+      blink::mojom::blink::IconDefinition::New();
+  mojoDefinition->src = definition.src();
+  mojoDefinition->sizes = definition.sizes();
+  mojoDefinition->type = definition.type();
+
+  return mojoDefinition;
+}
+
+}  // namespace mojo