Add UMA stats to record when DLLs are successfully blocked in the Browser.

chrome_elf/blacklist/blacklist.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_ELF_BLACKLIST_BLACKLIST_H_
 #define CHROME_ELF_BLACKLIST_BLACKLIST_H_
 
 #if defined(_WIN64)
 #include "sandbox/win/src/sandbox_nt_types.h"
 #endif
@@ skipping 56 matching lines @@
 // Adds the given dll name to the blacklist. Returns true if the dll name is in
 // the blacklist when this returns, false on error. Note that this will copy
 // |dll_name| and will leak it on exit if the string is not subsequently removed
 // using RemoveDllFromBlacklist.
 extern "C" bool AddDllToBlacklist(const wchar_t* dll_name);
 
 // Removes the given dll name from the blacklist. Returns true if it was
 // removed, false on error.
 extern "C" bool RemoveDllFromBlacklist(const wchar_t* dll_name);
 
+// Returns a list of all the dlls that have been successfully blocked by the
+// blacklist via blocked_dlls, if there is enough space (according to |size|).
+// |size| will always be modify to be the number of dlls that were blocked.

[robertshield, 2014/02/24 15:24:05]

be modified

[csharp, 2014/02/24 21:37:16]

Done.

+extern "C" void SuccessfullyBlocked(const wchar_t** blocked_dlls, int* size);

[robertshield, 2014/02/24 15:24:05]

document the memory management specifics here, i.e.: the caller does not own the
returned strings and is not expected to free them

[csharp, 2014/02/24 21:37:16]

Done.

+
+// Record that the dll at the given index was blocked.
+void BlockedDll(int blocked_index);
+
 // Initializes the DLL blacklist in the current process. This should be called
 // before any undesirable DLLs might be loaded. If |force| is set to true, then
 // initialization will take place even if a beacon is present. This is useful
 // for tests.
 bool Initialize(bool force);
 
 }  // namespace blacklist
 
 #endif  // CHROME_ELF_BLACKLIST_BLACKLIST_H_