Upstream Chrome on iOS source code [10/11].

ios/chrome/browser/web/web_mediator.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.
+
+// ======                        New Architecture                         =====
+// =         This code is only used in the new iOS Chrome architecture.       =
+// ============================================================================
+
+#import "ios/chrome/browser/web/web_mediator+internal.h"
+#import "ios/chrome/browser/web/web_mediator.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+@interface WebMediator ()
+@property(nonatomic, readwrite, assign) web::WebState* webState;
+@property(nonatomic, readwrite, strong) NSMutableDictionary* injectors;
+@end
+
+@implementation WebMediator
+@synthesize webState = _webState;
+@synthesize injectors = _injectors;
+
+- (instancetype)initWithWebState:(web::WebState*)webState {
+  if (self = [super init]) {
+    _webState = webState;
+    _injectors = [[NSMutableDictionary alloc] init];
+  }
+  return self;
+}
+
+@end