[ios] Fixed CRWWebControllerTest.WebUrlWithTrustLevel for iOS 10.

ios/web/web_state/ui/crw_web_controller_unittest.mm

Index: ios/web/web_state/ui/crw_web_controller_unittest.mm
diff --git a/ios/web/web_state/ui/crw_web_controller_unittest.mm b/ios/web/web_state/ui/crw_web_controller_unittest.mm
index 44bc67b4dc228536fa975e2aef21e73524194175..df1a635aa5e13397862ff48c807413f9ca47369b 100644
--- a/ios/web/web_state/ui/crw_web_controller_unittest.mm
+++ b/ios/web/web_state/ui/crw_web_controller_unittest.mm
@@ -320,8 +320,12 @@ class CRWWebControllerTest : public web::WebTestWithWebController {
   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];