Implement delaying resource requests until privacy blacklists are ready.

chrome/browser/privacy_blacklist/blacklist_manager.h

Index: chrome/browser/privacy_blacklist/blacklist_manager.h
diff --git a/chrome/browser/privacy_blacklist/blacklist_manager.h b/chrome/browser/privacy_blacklist/blacklist_manager.h
index 5d6e97b487f962ad07d18a0d2e9ce3d2602e90cf..1ababd6a359d88c4bc4417d8cde1b975980c6f89 100644
--- a/chrome/browser/privacy_blacklist/blacklist_manager.h
+++ b/chrome/browser/privacy_blacklist/blacklist_manager.h
@@ -70,6 +70,7 @@ class BlacklistManager
   // Compile all persistent blacklists to one binary blacklist stored on disk.
   void CompileBlacklist();
   void DoCompileBlacklist(const std::vector<FilePath>& source_blacklists);
+  void OnBlacklistCompilationReadErrors(const std::vector<string16>& errors);
   void OnBlacklistCompilationFinished(bool success);
 
   // Read all blacklists from disk (the compiled one and also the transient
@@ -80,6 +81,10 @@ class BlacklistManager
   void UpdatePublishedCompiledBlacklist(Blacklist* blacklist);
   void OnBlacklistReadFinished(bool success);
 
+  // Sets the |compiled_blacklist_| to NULL to indicate that the blacklist is
+  // not ready.
+  void ResetPublishedCompiledBlacklist();
+
   // True after the first blacklist read has finished (regardless of success).
   // Used to avoid an infinite loop.
   bool first_read_finished_;