[ios] Fixed SetPageDisplayStateWithUserScalableEnabled test 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 739 matching lines @@
     return web_controller().pageDisplayState.scroll_state().offset_x() == 1.0;
   });
 
   ASSERT_EQ(original_zoom_state,
             web_controller().pageDisplayState.zoom_state());
 };
 
 // TODO(iOS): Flaky on the bots. crbug/493427
 TEST_F(CRWWebControllerPageScrollStateTest,
        FLAKY_SetPageDisplayStateWithUserScalableEnabled) {
-  web::PageZoomState zoom_state(1.0, 10.0, 1.0);
+  web::PageZoomState zoom_state(1.0, 5.0, 1.0);
+
   LoadHtml(GetHTMLForZoomState(zoom_state, PAGE_SCALABILITY_ENABLED));
   WaitForZoomRendering(web_controller(), zoom_state);
 
   web::NavigationManager* nagivation_manager =
       web_state()->GetNavigationManager();
   nagivation_manager->GetLastCommittedItem()->SetPageDisplayState(
       CreateTestPageDisplayState(CGPointMake(1.0, 1.0),  // scroll offset
                                  3.0,                    // relative zoom scale
                                  1.0,    // original minimum zoom scale
-                                 10.0,   // original maximum zoom scale
+                                 5.0,    // original maximum zoom scale
                                  1.0));  // original zoom scale
   [web_controller() restoreStateFromHistory];
 
   // |-restoreStateFromHistory| is async; wait for its completion.
   base::test::ios::WaitUntilCondition(^bool() {
     return web_controller().pageDisplayState.scroll_state().offset_x() == 1.0;
   });
 
   web::PageZoomState final_zoom_state =
       web_controller().pageDisplayState.zoom_state();
@@ skipping 283 matching lines @@
 
   [web_controller() setDelegate:delegate];
   web::SimulateWKWebViewCrash(webView_);
 
   EXPECT_OCMOCK_VERIFY(delegate);
   EXPECT_FALSE([web_controller() isViewAlive]);
   [web_controller() setDelegate:nil];
 };
 
 }  // namespace