[Translate] Migrate IPCs to Mojo interfaces.

components/translate/content/public/cpp/translate_struct_traits.h

+// 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.
+
+#ifndef COMPONENTS_TRANSLATE_CONTENT_PUBLIC_INTERFACES_TRANSLATE_STRUCT_TRAITS_H_
+#define COMPONENTS_TRANSLATE_CONTENT_PUBLIC_INTERFACES_TRANSLATE_STRUCT_TRAITS_H_
+
+#include "base/strings/string16.h"
+#include "base/time/time.h"
+#include "components/translate/content/public/interfaces/translate.mojom.h"
+#include "components/translate/core/common/language_detection_details.h"
+#include "components/translate/core/common/translate_errors.h"
+#include "mojo/public/cpp/bindings/struct_traits.h"
+
+namespace mojo {
+
+template <>
+struct EnumTraits<translate::mojom::TranslateError,

[Ken Rockot(use gerrit already), 2016/07/29 17:21:17]

It would be nice if we could just move the enum definition into mojom, but that
looks like it will touch a lot of code. I'm fine with doing that later.

[leonhsl(Using Gerrit), 2016/07/30 08:45:07]

Yeah agree, lots of code need to be changed, I'd like to do this work later.

+                  translate::TranslateErrors::Type> {
+  static translate::mojom::TranslateError ToMojom(
+      translate::TranslateErrors::Type input);
+  static bool FromMojom(translate::mojom::TranslateError input,
+                        translate::TranslateErrors::Type* output);
+};
+
+template <>
+struct StructTraits<translate::mojom::LanguageDetectionDetails,
+                    translate::LanguageDetectionDetails> {
+  static const base::Time& time(const translate::LanguageDetectionDetails& r) {
+    return r.time;
+  }
+
+  static const GURL& url(const translate::LanguageDetectionDetails& r) {
+    return r.url;
+  }
+
+  static const std::string& content_language(
+      const translate::LanguageDetectionDetails& r) {
+    return r.content_language;
+  }
+
+  static const std::string& cld_language(
+      const translate::LanguageDetectionDetails& r) {
+    return r.cld_language;
+  }
+
+  static bool is_cld_reliable(const translate::LanguageDetectionDetails& r) {
+    return r.is_cld_reliable;
+  }
+
+  static bool has_notranslate(const translate::LanguageDetectionDetails& r) {
+    return r.has_notranslate;
+  }
+
+  static const std::string& html_root_language(
+      const translate::LanguageDetectionDetails& r) {
+    return r.html_root_language;
+  }
+
+  static const std::string& adopted_language(
+      const translate::LanguageDetectionDetails& r) {
+    return r.adopted_language;
+  }
+
+  static const base::string16& contents(
+      const translate::LanguageDetectionDetails& r) {
+    return r.contents;
+  }
+
+  static bool Read(translate::mojom::LanguageDetectionDetailsDataView data,
+                   translate::LanguageDetectionDetails* out);
+};
+
+}  // namespace mojo
+
+#endif  // COMPONENTS_TRANSLATE_CONTENT_PUBLIC_INTERFACES_TRANSLATE_STRUCT_TRAITS_H_