Add support for a module whitelist (goog-whitemodule-digest256) to the safe browsing db

components/safe_browsing_db/database_manager.h

Index: components/safe_browsing_db/database_manager.h
diff --git a/components/safe_browsing_db/database_manager.h b/components/safe_browsing_db/database_manager.h
index 4924cacb32503fd883bdb906f0c620691e6205af..32efe097119b77e93b080eff76e46222b6f5d93e 100644
--- a/components/safe_browsing_db/database_manager.h
+++ b/components/safe_browsing_db/database_manager.h
@@ -118,6 +118,12 @@ class SafeBrowsingDatabaseManager
   // error occurs.  This method must be called on the IO thread.
   virtual bool MatchInclusionWhitelistUrl(const GURL& url) = 0;
 
+  // Check if |str| matches any of the full-length hashes from the module

[Nathan Parker, 2016/02/16 21:20:53]

Add a line describing |str|'s format, and describe how this is used, so
new-comers to this code will have context.  "module" is rather vague.

[proberge, 2016/02/16 22:30:17]

Done.

+  // whitelist.  Returns true if there was a match and false otherwise.  To make
+  // sure we are conservative we will return true if an error occurs.  This
+  // method must be called on the IO thread.
+  virtual bool MatchModuleWhitelistString(const std::string& str) = 0;
+
   // Check if the CSD malware IP matching kill switch is turned on.
   virtual bool IsMalwareKillSwitchOn() = 0;