[ios clean] Creates ToolbarWebState Mediator

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

Index: ios/clean/chrome/browser/ui/toolbar/toolbar_coordinator.h
diff --git a/ios/clean/chrome/browser/ui/toolbar/toolbar_coordinator.h b/ios/clean/chrome/browser/ui/toolbar/toolbar_coordinator.h
index 8d74ee3dfa304a5c8294f7c92faa5329b198bac7..3bd00dfd58bb644804103304ea2ebae715111e8d 100644
--- a/ios/clean/chrome/browser/ui/toolbar/toolbar_coordinator.h
+++ b/ios/clean/chrome/browser/ui/toolbar/toolbar_coordinator.h
@@ -10,10 +10,15 @@
 #define IOS_CLEAN_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_COORDINATOR_H_
 
 #import "ios/clean/chrome/browser/browser_coordinator.h"
-#import "ios/web/public/web_state/web_state_observer_bridge.h"
+
+namespace web {
+class WebState;
+}
 
 // Coordinator to run a toolbar -- a UI element housing controls.
-@interface ToolbarCoordinator : BrowserCoordinator<CRWWebStateObserver>
+@interface ToolbarCoordinator : BrowserCoordinator
+// The web state this ToolbarCoordinator is handling.
+@property(nonatomic, assign) web::WebState* webState;

[edchin, 2017/02/21 18:39:08]

If this webState is required, consider a custom initializer. 

[sczs, 2017/02/21 19:04:09]

I was thinking the exact same thing! But I'm not sure what's our policy on
custom initializers for Coordinators, and since Mark didn't create one for web I
thought we should keep things similar.

 @end
 
 #endif  // IOS_CLEAN_CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_COORDINATOR_H_