[ios clean] Move dispatcher out of Browser.

ios/clean/chrome/browser/ui/toolbar/toolbar_coordinator.mm

Index: ios/clean/chrome/browser/ui/toolbar/toolbar_coordinator.mm
diff --git a/ios/clean/chrome/browser/ui/toolbar/toolbar_coordinator.mm b/ios/clean/chrome/browser/ui/toolbar/toolbar_coordinator.mm
index 8b892dcccf5bb9934807b43fdf5cf0121ab28618..db8e24f3ce4f1615d8f3593347e475d0e1fa04d2 100644
--- a/ios/clean/chrome/browser/ui/toolbar/toolbar_coordinator.mm
+++ b/ios/clean/chrome/browser/ui/toolbar/toolbar_coordinator.mm
@@ -50,18 +50,19 @@
 - (void)start {
   self.viewController = [[ToolbarViewController alloc] init];
 
-  CommandDispatcher* dispatcher = self.browser->dispatcher();
-  [dispatcher startDispatchingToTarget:self
-                           forSelector:@selector(showToolsMenu)];
-  [dispatcher startDispatchingToTarget:self
-                           forSelector:@selector(closeToolsMenu)];
-  [dispatcher startDispatchingToTarget:self forSelector:@selector(goBack)];
-  [dispatcher startDispatchingToTarget:self forSelector:@selector(goForward)];
-  [dispatcher startDispatchingToTarget:self forSelector:@selector(reloadPage)];
-  [dispatcher startDispatchingToTarget:self
-                           forSelector:@selector(stopLoadingPage)];
-
-  self.viewController.dispatcher = static_cast<id>(self.browser->dispatcher());
+  [self.dispatcher startDispatchingToTarget:self
+                                forSelector:@selector(showToolsMenu)];
+  [self.dispatcher startDispatchingToTarget:self
+                                forSelector:@selector(closeToolsMenu)];
+  [self.dispatcher startDispatchingToTarget:self forSelector:@selector(goBack)];
+  [self.dispatcher startDispatchingToTarget:self
+                                forSelector:@selector(goForward)];
+  [self.dispatcher startDispatchingToTarget:self
+                                forSelector:@selector(reloadPage)];
+  [self.dispatcher startDispatchingToTarget:self
+                                forSelector:@selector(stopLoadingPage)];
+
+  self.viewController.dispatcher = self.callableDispatcher;
   self.mediator.consumer = self.viewController;
   self.mediator.webStateList = &self.browser->web_state_list();
 
@@ -82,7 +83,7 @@
   [self.browser->broadcaster()
       removeObserver:self.mediator
          forSelector:@selector(broadcastTabStripVisible:)];
-  [self.browser->dispatcher() stopDispatchingToTarget:self];
+  [self.dispatcher stopDispatchingToTarget:self];
 }
 
 - (void)childCoordinatorDidStart:(BrowserCoordinator*)childCoordinator {