Refactor Permissions related method out of ContentBrowserClient.

content/public/browser/browser_context.h

Index: content/public/browser/browser_context.h
diff --git a/content/public/browser/browser_context.h b/content/public/browser/browser_context.h
index 5a0524ab0810e0031a8881996de33ccdde9b5105..c15afefc81a7f91e864ffd94164d41881011c2c6 100644
--- a/content/public/browser/browser_context.h
+++ b/content/public/browser/browser_context.h
@@ -39,6 +39,7 @@ class BrowserPluginGuestManager;
 class DownloadManager;
 class DownloadManagerDelegate;
 class IndexedDBContext;
+class PermissionManager;
 class PushMessagingService;
 class ResourceContext;
 class SiteInstance;
@@ -181,6 +182,10 @@ class CONTENT_EXPORT BrowserContext : public base::SupportsUserData {
   // Returns the SSL host state decisions for this context. The context may
   // return nullptr, implementing the default exception storage strategy.
   virtual SSLHostStateDelegate* GetSSLHostStateDelegate() = 0;
+
+  // Returns the PermissionManager associated with that context if any, nullptr
+  // otherwise.
+  virtual PermissionManager* GetPermissionManager() = 0;
 };
 
 }  // namespace content