Fix up PathProvider on the Mac for FILE_MODULE.

base/mac/foundation_util.mm

 // Copyright (c) 2011 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.
 
 #include "base/mac/foundation_util.h"
 
+#include <dlfcn.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/mac/scoped_cftyperef.h"
 #include "base/sys_string_conversions.h"
 
 namespace base {
 namespace mac {
@@ skipping 176 matching lines @@
         !it->compare(it->length() - kExtLength, kExtLength, kExt, kExtLength))
       return FilePath(bundle_name);
 
     // Separate this component from the next one.
     bundle_name += '/';
   }
 
   return FilePath();
 }
 
+bool GetModulePathForSymbol(FilePath* path, const void* symbol) {
+  Dl_info info;
+  if (dladdr(symbol, &info) == 0)
+    return false;
+  *path = FilePath(info.dli_fname);
+  return true;
+}
+
 CFTypeRef GetValueFromDictionary(CFDictionaryRef dict,
                                  CFStringRef key,
                                  CFTypeID expected_type) {
   CFTypeRef value = CFDictionaryGetValue(dict, key);
   if (!value)
     return value;
 
   if (CFGetTypeID(value) != expected_type) {
     ScopedCFTypeRef<CFStringRef> expected_type_ref(
         CFCopyTypeIDDescription(expected_type));
@@ skipping 122 matching lines @@
         CFDictionaryGetValue(user_info.get(), kCFErrorDescriptionKey));
   }
   o << "Code: " << CFErrorGetCode(err)
     << " Domain: " << CFErrorGetDomain(err)
     << " Desc: " << desc.get();
   if(errorDesc) {
     o << "(" << errorDesc << ")";
   }
   return o;
 }