doesnt link in component build

public/platform/modules/permissions/WebPermissionClient.h

Index: public/platform/modules/permissions/WebPermissionClient.h
diff --git a/public/platform/modules/permissions/WebPermissionClient.h b/public/platform/modules/permissions/WebPermissionClient.h
index efc8811b81bb5f4f33b96c8a9b1edb567632bad7..7f1ba2c3463271788b3b4c3377fbe3cc90b36275 100644
--- a/public/platform/modules/permissions/WebPermissionClient.h
+++ b/public/platform/modules/permissions/WebPermissionClient.h
@@ -6,6 +6,7 @@
 #define WebPermissionClient_h
 
 #include "public/platform/WebCallbacks.h"
+#include "public/platform/WebCommon.h"
 #include "public/platform/modules/permissions/WebPermissionStatus.h"
 #include "public/platform/modules/permissions/WebPermissionType.h"
 
@@ -13,6 +14,7 @@ namespace blink {
 
 using WebPermissionQueryCallback = WebCallbacks<WebPermissionStatus, void>;
 
+class ExecutionContext;
 class WebPermissionObserver;
 class WebURL;
 
@@ -20,6 +22,9 @@ class WebURL;
 // permission query to requesting new permissions.
 class WebPermissionClient {
 public:
+
+    virtual void requestDurablePermission(const WebURL&, WebPermissionQueryCallback*) { }
+
     // Query the permission status of a given origin for a specific permission.
     virtual void queryPermission(WebPermissionType, const WebURL&, WebPermissionQueryCallback*) { }
 
@@ -33,6 +38,10 @@ public:
     // observer.
     virtual void stopListening(WebPermissionObserver*) { }
 
+#if BLINK_IMPLEMENTATION
+    static WebPermissionClient* get(ExecutionContext*);
+#endif
+
 protected:
     virtual ~WebPermissionClient() { }
 };