Support host-based deletion for SSLHostStateDelegate

content/public/browser/ssl_host_state_delegate.h

Index: content/public/browser/ssl_host_state_delegate.h
diff --git a/content/public/browser/ssl_host_state_delegate.h b/content/public/browser/ssl_host_state_delegate.h
index 5324a999c8fd2adcae731cc6258bb1026d2c8468..19eedce8246dd7066417ec13ef90d60d6984b938 100644
--- a/content/public/browser/ssl_host_state_delegate.h
+++ b/content/public/browser/ssl_host_state_delegate.h
@@ -7,6 +7,7 @@
 
 #include <memory>
 
+#include "base/callback_forward.h"
 #include "base/memory/ref_counted.h"
 #include "base/threading/non_thread_safe.h"
 #include "content/common/content_export.h"
@@ -51,8 +52,10 @@ class SSLHostStateDelegate {
                          const net::X509Certificate& cert,
                          net::CertStatus error) = 0;
 
-  // Clear all allow preferences.
-  virtual void Clear() = 0;
+  // Clear allow preferences matched by |host_filter|. If the filter is null,
+  // clear all preferences.
+  virtual void Clear(
+      const base::Callback<bool(const std::string&)>& host_filter) = 0;
 
   // Queries whether |cert| is allowed for |host| and |error|. Returns true in
   // |expired_previous_decision| if a previous user decision expired immediately