Creates translate_compact_infobar class, which holds the logic for the new translate UI

chrome/browser/translate/android/translate_utils.cc

Index: chrome/browser/translate/android/translate_utils.cc
diff --git a/chrome/browser/translate/android/translate_utils.cc b/chrome/browser/translate/android/translate_utils.cc
new file mode 100644
index 0000000000000000000000000000000000000000..325f4ca755d15e4ee2688c296cac8f752e2c8e21
--- /dev/null
+++ b/chrome/browser/translate/android/translate_utils.cc
@@ -0,0 +1,38 @@
+// 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 "chrome/browser/translate/android/translate_utils.h"
+
+#include <stddef.h>
+
+#include "base/android/jni_array.h"
+#include "base/android/jni_string.h"
+#include "base/android/jni_weak_ref.h"
+#include "base/memory/ptr_util.h"
+#include "components/translate/core/browser/translate_infobar_delegate.h"
+
+using base::android::JavaParamRef;
+using base::android::ScopedJavaLocalRef;
+
+ScopedJavaLocalRef<jobjectArray> TranslateUtils::GetJavaLanguages(
+    JNIEnv* env,
+    translate::TranslateInfoBarDelegate* delegate) {
+  std::vector<base::string16> languages;
+  languages.reserve(delegate->num_languages());
+  for (size_t i = 0; i < delegate->num_languages(); ++i) {
+    languages.push_back(delegate->language_name_at(i));
+  }
+  return base::android::ToJavaArrayOfStrings(env, languages);
+}
+
+ScopedJavaLocalRef<jobjectArray> TranslateUtils::GetJavaLanguageCodes(
+    JNIEnv* env,
+    translate::TranslateInfoBarDelegate* delegate) {
+  std::vector<std::string> codes;
+  codes.reserve(delegate->num_languages());
+  for (size_t i = 0; i < delegate->num_languages(); ++i) {
+    codes.push_back(delegate->language_code_at(i));
+  }
+  return base::android::ToJavaArrayOfStrings(env, codes);
+}