[ios] Adds ChromiumBrowserProvider.

ios/chrome/browser/providers/chromium_browser_provider.mm

+// 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/chrome/browser/providers/chromium_browser_provider.h"
+
+#include "base/memory/ptr_util.h"
+#import "ios/chrome/browser/providers/chromium_logo_controller.h"
+#import "ios/chrome/browser/providers/chromium_voice_search_provider.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+ChromiumBrowserProvider::ChromiumBrowserProvider()
+    : voice_search_provider_(base::MakeUnique<ChromiumVoiceSearchProvider>()) {}
+
+ChromiumBrowserProvider::~ChromiumBrowserProvider() {}
+
+VoiceSearchProvider* ChromiumBrowserProvider::GetVoiceSearchProvider() const {
+  return voice_search_provider_.get();
+}
+
+id<LogoVendor> ChromiumBrowserProvider::CreateLogoVendor(
+    ios::ChromeBrowserState* browser_state,
+    id<UrlLoader> loader) const {
+  return [[ChromiumLogoController alloc] init];
+}