Add a UMA stat to track if the Browser blacklist is Set on the Renderer

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_
 
 namespace blacklist {
 
 // Max size of the DLL blacklist.
 const int kTroublesomeDllsMaxCount = 64;
 
 // The DLL blacklist.
 extern const wchar_t* g_troublesome_dlls[kTroublesomeDllsMaxCount];
 
 // The registry path of the blacklist beacon.
 extern const wchar_t kRegistryBeaconPath[];
 
 // The properties for the blacklist beacon.
 extern const wchar_t kBeaconVersion[];
 extern const wchar_t kBeaconState[];
 
+// Record if the blacklist was patched in so processes can easily determine

[robertshield, 2014/02/06 18:55:23]

s/patched in/successfully initialized/

[csharp, 2014/02/06 20:03:58]

Done.

+// if the blacklist is enabled for them.
+// TODO(csharp): Remove once we are sure the blacklist is only patching the
+// browser process.
+extern bool blacklist_patched;
+
 // The states for the blacklist setup code.
 enum BlacklistState {
   BLACKLIST_DISABLED = 0,
   BLACKLIST_ENABLED,
   // The blacklist setup code is running. If this is still set at startup,
   // it means the last setup crashed.
   BLACKLIST_SETUP_RUNNING,
   // Always keep this at the end.
   BLACKLIST_STATE_MAX,
 };
@@ skipping 26 matching lines @@
 
 // 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_