Pull back some CHECK calls which were removed.

chrome/common/mac/cfbundle_blocker.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 "chrome/common/mac/cfbundle_blocker.h"
 
 #include <CoreFoundation/CoreFoundation.h>
 #import <Foundation/Foundation.h>
 
 #include "base/logging.h"
@@ skipping 157 matching lines @@
       base::mac::CFToNSCast(kCFBundleVersionKey)];
   if (![version isKindOfClass:[NSString class]]) {
     // Deal with pranksters.
     version = nil;
   }
 
   if (IsBundlePathBlocked(path) && !IsBundleAllowed(bundle_id, version)) {
     NSString* bundle_id_print = bundle_id ? bundle_id : @"(nil)";
     NSString* version_print = version ? version : @"(nil)";
 
-    DLOG(INFO) << "Blocking attempt to load bundle "
-               << [bundle_id_print UTF8String]
-               << " version "
-               << [version_print UTF8String]
-               << " at "
-               << [path fileSystemRepresentation];
+    // Provide a hint for the user (or module developer) to figure out
+    // that the bundle was blocked.
+    LOG(INFO) << "Blocking attempt to load bundle "
+              << [bundle_id_print UTF8String]
+              << " version "
+              << [version_print UTF8String]
+              << " at "
+              << [path fileSystemRepresentation];
 
     if (error) {
       base::mac::ScopedCFTypeRef<CFStringRef> app_bundle_id(
           base::SysUTF8ToCFStringRef(base::mac::BaseBundleID()));
 
       // 0xb10c10ad = "block load"
       const CFIndex kBundleLoadBlocked = 0xb10c10ad;
 
       NSMutableDictionary* error_dict =
           [NSMutableDictionary dictionaryWithCapacity:4];
@@ skipping 127 matching lines @@
     }
   }
 
   // Nothing matched.
   return false;
 }
 
 }  // namespace mac
 }  // namespace common
 }  // namespace chrome