Remove __gCrWeb.invokeOnHostImmediate.

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 162 matching lines @@
 
 // Key of UMA IOSFix.ViewportZoomBugCount histogram.
 const char kUMAViewportZoomBugCount[] = "Renderer.ViewportZoomBugCount";
 
 // A tag for the web view, so that tests can identify it. This is used instead
 // of exposing a getter (and deliberately not exposed in the header) to make it
 // *very* clear that this is a hack which should only be used as a last resort.
 const NSUInteger kWebViewTag = 0x3eb71e3;
 // URL scheme for messages sent from javascript for asynchronous processing.
 NSString* const kScriptMessageName = @"crwebinvoke";
-// URL scheme for messages sent from javascript for immediate processing.
-NSString* const kScriptImmediateName = @"crwebinvokeimmediate";
 
 // Constants for storing the source of NSErrors received by WKWebViews:
 // - Errors received by |-webView:didFailProvisionalNavigation:withError:| are
 //   recorded using WKWebViewErrorSource::PROVISIONAL_LOAD.  These should be
 //   cancelled.
 // - Errors received by |-webView:didFailNavigation:withError:| are recorded
 //   using WKWebViewsource::NAVIGATION.  These errors should not be cancelled,
 //   as the WKWebView will automatically retry the load.
 NSString* const kWKWebViewErrorSourceKey = @"ErrorSource";
 typedef enum { NONE = 0, PROVISIONAL_LOAD, NAVIGATION } WKWebViewErrorSource;
@@ skipping 2428 matching lines @@
   if (base::SysNSStringToUTF8([_windowIDJSManager windowID]) != windowID) {
     DLOG(WARNING) << "Message from JS ignored due to non-matching windowID: " <<
         [_windowIDJSManager windowID]
                   << " != " << base::SysUTF8ToNSString(windowID);
     return NO;
   }
   base::DictionaryValue* command = nullptr;
   if (!message->GetDictionary("crwCommand", &command)) {
     return NO;
   }
-  if ([scriptMessage.name isEqualToString:kScriptImmediateName] ||
-      [scriptMessage.name isEqualToString:kScriptMessageName]) {
+  if ([scriptMessage.name isEqualToString:kScriptMessageName]) {
     return [self respondToMessage:command
                 userIsInteracting:[self userIsInteracting]
                         originURL:net::GURLWithNSURL([_webView URL])];
   }
 
   NOTREACHED();
   return NO;
 }
 
 #pragma mark -
@@ skipping 2002 matching lines @@
   for (NSString* keyPath in self.WKWebViewObservers) {
     [_webView removeObserver:self forKeyPath:keyPath];
   }
   [self clearActivityIndicatorTasks];
 
   _webView.reset([webView retain]);
 
   // Set up the new web view.
   if (webView) {
     base::WeakNSObject<CRWWebController> weakSelf(self);
-    void (^messageHandler)(WKScriptMessage*) = ^(WKScriptMessage* message) {
+    [messageRouter setScriptMessageHandler:^(WKScriptMessage* message) {
       [weakSelf didReceiveScriptMessage:message];
-    };
-    [messageRouter setScriptMessageHandler:messageHandler
+    }
                                       name:kScriptMessageName
                                    webView:webView];
-    [messageRouter setScriptMessageHandler:messageHandler
-                                      name:kScriptImmediateName
-                                   webView:webView];
     _windowIDJSManager.reset(
         [[CRWJSWindowIDManager alloc] initWithWebView:webView]);
   } else {
     _windowIDJSManager.reset();
   }
   [_webView setNavigationDelegate:self];
   [_webView setUIDelegate:self];
   for (NSString* keyPath in self.WKWebViewObservers) {
     [_webView addObserver:self forKeyPath:keyPath options:0 context:nullptr];
   }
@@ skipping 938 matching lines @@
   }
 
   return web::WEB_VIEW_DOCUMENT_TYPE_GENERIC;
 }
 
 - (NSString*)refererFromNavigationAction:(WKNavigationAction*)action {
   return [action.request valueForHTTPHeaderField:@"Referer"];
 }
 
 @end