[ios] Adds BrandedImageProvider and its associated image resources.

ios/public/provider/chrome/browser/images/test_branded_image_provider.mm

Index: ios/public/provider/chrome/browser/images/test_branded_image_provider.mm
diff --git a/ios/public/provider/chrome/browser/images/test_branded_image_provider.mm b/ios/public/provider/chrome/browser/images/test_branded_image_provider.mm
new file mode 100644
index 0000000000000000000000000000000000000000..621cdf883ec869c4590d677b92d7173defeb4bd9
--- /dev/null
+++ b/ios/public/provider/chrome/browser/images/test_branded_image_provider.mm
@@ -0,0 +1,45 @@
+// 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/images/test_branded_image_provider.h"
+
+#import <Foundation/Foundation.h>
+
+TestBrandedImageProvider::TestBrandedImageProvider() {}
+
+TestBrandedImageProvider::~TestBrandedImageProvider() {}
+
+UIImage* TestBrandedImageProvider::GetAccountsListActivityControlsImage() {
+  return nil;
+}
+
+UIImage* TestBrandedImageProvider::GetClearBrowsingDataAccountActivityImage() {
+  return nil;
+}
+
+UIImage* TestBrandedImageProvider::GetClearBrowsingDataSiteDataImage() {
+  return nil;
+}
+
+UIImage* TestBrandedImageProvider::GetContextualSearchHeaderImage() {
+  return nil;
+}
+
+UIImage* TestBrandedImageProvider::GetSigninConfirmationSyncSettingsImage() {
+  return nil;
+}
+
+UIImage*
+TestBrandedImageProvider::GetSigninConfirmationPersonalizeServicesImage() {
+  return nil;
+}
+
+bool TestBrandedImageProvider::GetToolbarVoiceSearchButtonImageId(
+    int* image_id) {
+  return false;
+}
+
+UIImage* TestBrandedImageProvider::GetWhatsNewIconImage(WhatsNewIcon type) {
+  return nil;
+}