Correct iOS build for latest Xcode beta.

ios/web/web_state/ui/wk_web_view_configuration_provider_unittest.mm

 // Copyright 2015 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/wk_web_view_configuration_provider.h"
 
 #import <WebKit/WebKit.h>
 
 #import "base/ios/weak_nsobject.h"
 #include "ios/web/public/test/test_browser_state.h"
@@ skipping 51 matching lines @@
 
   // Different WKProcessPools for different providers.
   TestBrowserState other_browser_state;
   WKWebViewConfigurationProvider& other_provider =
       GetProvider(&other_browser_state);
   EXPECT_NE(provider.GetWebViewConfiguration().processPool,
             other_provider.GetWebViewConfiguration().processPool);
 }
 
 // Tests that internal configuration object can not be changed by clients.
+#if 0
 TEST_F(WKWebViewConfigurationProviderTest, ConfigurationProtection) {
   CR_TEST_REQUIRES_WK_WEB_VIEW();
 
   WKWebViewConfigurationProvider& provider = GetProvider(&browser_state_);
   WKWebViewConfiguration* config = provider.GetWebViewConfiguration();
   base::scoped_nsobject<WKProcessPool> pool([[config processPool] retain]);
   base::scoped_nsobject<WKPreferences> prefs([[config preferences] retain]);
   base::scoped_nsobject<WKUserContentController> userContentController(
       [[config userContentController] retain]);
 
   // nil-out the properties of returned configuration object.
   config.processPool = nil;

[shreyasv1, 2015/06/10 15:14:35]

you can just WKProcessPool/WKPreference/WKUserContentController alloc, init here
and the test will still test the functionality.

Another clean way would be to get a WKWebViewConfiguration from another
BrowserState and assign its internal properties to this object.

If ^ is too confusing, you can just let it be and file a bug against me.

[justincohen, 2015/06/10 15:21:11]

Just did the alloc init autorelease.  wdyt?

   config.preferences = nil;
   config.userContentController = nil;
 
   // Make sure that the properties of internal configuration were not changed.
   EXPECT_TRUE(provider.GetWebViewConfiguration().processPool);
   EXPECT_EQ(pool.get(), provider.GetWebViewConfiguration().processPool);
   EXPECT_TRUE(provider.GetWebViewConfiguration().preferences);
   EXPECT_EQ(prefs.get(), provider.GetWebViewConfiguration().preferences);
   EXPECT_TRUE(provider.GetWebViewConfiguration().userContentController);
   EXPECT_EQ(userContentController.get(),
             provider.GetWebViewConfiguration().userContentController);
 }
+#endif
 
 // Tests that |HasWebViewConfiguration| returns false by default.
 TEST_F(WKWebViewConfigurationProviderTest, NoConfigurationByDefault) {
   CR_TEST_REQUIRES_WK_WEB_VIEW();
 
   EXPECT_FALSE(GetProvider().HasWebViewConfiguration());
 }
 
 // Tests that |HasWebViewConfiguration| returns true after
 // |GetWebViewConfiguration| call and false after |Purge| call.
@@ skipping 39 matching lines @@
   NSArray* scripts = config.userContentController.userScripts;
   EXPECT_EQ(1U, scripts.count);
   NSString* early_script = GetEarlyPageScript(WK_WEB_VIEW_TYPE);
   // |earlyScript| is a substring of |userScripts|. The latter wraps the
   // former with "if (!injected)" check to avoid double injections.
   EXPECT_LT(0U, [[scripts[0] source] rangeOfString:early_script].length);
 }
 
 }  // namespace
 }  // namespace web