Add ContextMenuCoordinator.

ios/web/web_state/web_state_delegate_bridge_unittest.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/web/public/web_state/web_state_delegate_bridge.h"
 
 #include <memory>
 
 #import "base/mac/scoped_nsobject.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 35 matching lines @@
 }
 
 // Tests |HandleContextMenu| forwarding.
 TEST_F(WebStateDelegateBridgeTest, HandleContextMenu) {
   EXPECT_EQ(nil, [delegate_ contextMenuParams]);
   web::ContextMenuParams contextMenuParams;
   contextMenuParams.menu_title.reset([@"Menu title" copy]);
   contextMenuParams.link_url = GURL("http://www.url.com");
   contextMenuParams.src_url = GURL("http://www.url.com/image.jpeg");
   contextMenuParams.referrer_policy = web::ReferrerPolicyOrigin;
-  contextMenuParams.view = [UIView new];
+  contextMenuParams.view.reset([UIView new]);

[Eugene But (OOO till 7-30), 2016/05/20 21:26:46]

NIT: since you touching this could you please s/new/alloc] init]

But ideally this should be a separate CL :)

[michaeldo, 2016/05/23 21:19:08]

I'll fix and make a seperate cl :)

   contextMenuParams.location = CGPointMake(5.0, 5.0);
   bridge_->HandleContextMenu(nullptr, contextMenuParams);
   web::ContextMenuParams* resultParams = [delegate_ contextMenuParams];
   EXPECT_NE(nullptr, resultParams);
   EXPECT_EQ(contextMenuParams.menu_title, resultParams->menu_title);
   EXPECT_EQ(contextMenuParams.link_url, resultParams->link_url);
   EXPECT_EQ(contextMenuParams.src_url, resultParams->src_url);
   EXPECT_EQ(contextMenuParams.referrer_policy, resultParams->referrer_policy);
   EXPECT_EQ(contextMenuParams.view, resultParams->view);
   EXPECT_EQ(contextMenuParams.location.x, resultParams->location.x);
   EXPECT_EQ(contextMenuParams.location.y, resultParams->location.y);
 }
 
 }  // namespace web