[ios] Adds configuration helper files for voice search.

ios/public/provider/chrome/browser/voice/voice_search_language.mm

Index: ios/public/provider/chrome/browser/voice/voice_search_language.mm
diff --git a/ios/public/provider/chrome/browser/voice/voice_search_language.mm b/ios/public/provider/chrome/browser/voice/voice_search_language.mm
new file mode 100644
index 0000000000000000000000000000000000000000..549076021940c5b4f0c0ef6c93c384a0fab4edb1
--- /dev/null
+++ b/ios/public/provider/chrome/browser/voice/voice_search_language.mm
@@ -0,0 +1,31 @@
+// 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.
+
+#import "ios/public/provider/chrome/browser/voice/voice_search_language.h"
+
+#include "base/mac/objc_property_releaser.h"
+
+@implementation VoiceSearchLanguage {
+  base::mac::ObjCPropertyReleaser _propertyReleaser_VoiceSearchLanguage;
+}
+
+@synthesize identifier = _identifier;
+@synthesize displayName = _displayName;
+@synthesize localizationPreference = _localizationPreference;
+
+- (instancetype)initWithIdentifier:(NSString*)identifier
+                       displayName:(NSString*)displayName
+            localizationPreference:(NSString*)localizationPreference {
+  if ((self = [super init])) {
+    _identifier = [identifier copy];
+    _displayName = [displayName copy];
+    _localizationPreference = [localizationPreference copy];
+
+    _propertyReleaser_VoiceSearchLanguage.Init(self,
+                                               [VoiceSearchLanguage class]);
+  }
+  return self;
+}
+
+@end