Support manual (white|black)list, previewing and allowing after interstitial

chrome/browser/managed_mode/managed_mode_resource_throttle.h

Index: chrome/browser/managed_mode/managed_mode_resource_throttle.h
diff --git a/chrome/browser/managed_mode/managed_mode_resource_throttle.h b/chrome/browser/managed_mode/managed_mode_resource_throttle.h
index acefa966d4fa067c95992bf09c5d8f1f1a5d01c6..1a33e665c03a7c0c7d17e04fea034356b8c824fb 100644
--- a/chrome/browser/managed_mode/managed_mode_resource_throttle.h
+++ b/chrome/browser/managed_mode/managed_mode_resource_throttle.h
@@ -15,8 +15,6 @@ namespace net {
 class URLRequest;
 }
 
-// This class temporarily blocks network requests that aren't whitelisted,
-// and allows resuming them later.
 class ManagedModeResourceThrottle : public content::ResourceThrottle {
  public:
   ManagedModeResourceThrottle(const net::URLRequest* request,
@@ -25,10 +23,27 @@ class ManagedModeResourceThrottle : public content::ResourceThrottle {
                               bool is_main_frame);
   virtual ~ManagedModeResourceThrottle();
 
+  // Adds/removes a temporary exception to filtering for a
+  // render_process_host_id and render_view_id pair (which identify a tab)
+  // to the preview map. Adding saves the last approved hostname in the map,
+  // which is then used to allow the user to browse on that hostname without
+  // getting an interstitial. See managed_mode_resource_throttle.cc for more
+  // details on the preview map.
+  static void AddTemporaryException(int render_process_host_id,
+                                    int render_view_id,
+                                    const GURL& url);
+  static void RemoveTemporaryException(int render_process_host_id,
+                                       int render_view_id);
+
   // content::ResourceThrottle implementation:
   virtual void WillStartRequest(bool* defer) OVERRIDE;
 
+  virtual void WillRedirectRequest(const GURL& new_url, bool* defer) OVERRIDE;
+
  private:
+  void ShowInterstitialIfNeeded(bool is_redirect,
+                                const GURL& url,
+                                bool* defer);
   void OnInterstitialResult(bool continue_request);
 
   base::WeakPtrFactory<ManagedModeResourceThrottle> weak_ptr_factory_;
@@ -36,6 +51,7 @@ class ManagedModeResourceThrottle : public content::ResourceThrottle {
   int render_process_host_id_;
   int render_view_id_;
   bool is_main_frame_;
+  bool temporarily_allowed_;
   const ManagedModeURLFilter* url_filter_;
 
   DISALLOW_COPY_AND_ASSIGN(ManagedModeResourceThrottle);