[ios] Fixed CRWWebControllerTest.WebUrlWithTrustLevel for iOS 10.

ios/web/web_state/ui/crw_web_controller_unittest.mm

 // Copyright 2012 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/web_state/ui/crw_web_controller.h"
 
 #import <WebKit/WebKit.h>
 
 #include <utility>
 
@@ skipping 302 matching lines @@
     CGSize containerViewSize = [UIScreen mainScreen].bounds.size;
     containerViewSize.height -=
         CGRectGetHeight([UIApplication sharedApplication].statusBarFrame);
     return {CGPointZero, containerViewSize};
   }
 
   // Creates WebView mock.
   UIView* CreateMockWebView() {
     id result = [[OCMockObject mockForClass:[WKWebView class]] retain];
 
-    // Called by resetInjectedWebView
-    [[result stub] certificateChain];
+    if (base::ios::IsRunningOnIOS10OrLater()) {
+      [[result stub] serverTrust];
+    } else {
+      [[result stub] certificateChain];
+    }
+
     [[result stub] backForwardList];
     [[[result stub] andReturn:[NSURL URLWithString:kTestURLString]] URL];
     [[result stub] setNavigationDelegate:OCMOCK_ANY];
     [[result stub] setUIDelegate:OCMOCK_ANY];
     [[result stub] setFrame:ExpectedWebViewFrame()];
     [[result stub] addObserver:web_controller()
                     forKeyPath:OCMOCK_ANY
                        options:0
                        context:nullptr];
     [[result stub] addObserver:OCMOCK_ANY
@@ skipping 667 matching lines @@
 
   [web_controller() setDelegate:delegate];
   web::SimulateWKWebViewCrash(webView_);
 
   EXPECT_OCMOCK_VERIFY(delegate);
   EXPECT_FALSE([web_controller() isViewAlive]);
   [web_controller() setDelegate:nil];
 };
 
 }  // namespace