base: Remove the string logging from CHECK().

ios/web/web_state/ui/crw_web_controller.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>
 
 #import <objc/runtime.h>
 #include <stddef.h>
@@ skipping 4659 matching lines @@
   WKWebViewConfiguration* config =
       [self webViewConfigurationProvider].GetWebViewConfiguration();
   [self ensureWebViewCreatedWithConfiguration:config];
 }
 
 - (void)ensureWebViewCreatedWithConfiguration:(WKWebViewConfiguration*)config {
   if (!_webView) {
     [self setWebView:[self webViewWithConfiguration:config]];
     // The following is not called in -setWebView: as the latter used in unit
     // tests with fake web view, which cannot be added to view hierarchy.
-    CHECK(_webUsageEnabled) << "Tried to create a web view while suspended!";
+    // Tried to create a web view while suspended!
+    CHECK(_webUsageEnabled);
 
     DCHECK(_webView);
 
     [_webView setTag:kWebViewTag];
     [_webView setAutoresizingMask:UIViewAutoresizingFlexibleWidth |
                                   UIViewAutoresizingFlexibleHeight];
     [_webView setBackgroundColor:[UIColor colorWithWhite:0.2 alpha:1.0]];
 
     // Create a dependency between the |webView| pan gesture and BVC side swipe
     // gestures. Note: This needs to be added before the longPress recognizers
@@ skipping 1101 matching lines @@
   }
 
   return web::WEB_VIEW_DOCUMENT_TYPE_GENERIC;
 }
 
 - (NSString*)refererFromNavigationAction:(WKNavigationAction*)action {
   return [action.request valueForHTTPHeaderField:@"Referer"];
 }
 
 @end