mac: Remove IsOSSnowLeopard().

chrome/browser/mac/bluetooth_utility.mm

 // Copyright 2014 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/browser/mac/bluetooth_utility.h"
 
 #import <Foundation/Foundation.h>
 #include <IOKit/IOKitLib.h>
 
 #include "base/mac/foundation_util.h"
@@ skipping 32 matching lines @@
     NSDictionary* objc_dict = base::mac::CFToNSCast(scoped_dict.get());
     NSNumber* lmp_version =
         base::mac::ObjCCast<NSNumber>([objc_dict objectForKey:@"LMPVersion"]);
     if (!lmp_version)
       continue;
 
     // The LMP version is too low to support Bluetooth LE.
     if ([lmp_version intValue] < 6)
       continue;
 
-    // Check the supported features registry entry for Bluetooth LE
-    // availability. The relevant bit has a different meaning on OSX 10.6, and
-    // could change again in the future.
-    if (base::mac::IsOSSnowLeopard())
-      return BLUETOOTH_AVAILABLE_LE_UNKNOWN;
-
     NSData* data = base::mac::ObjCCast<NSData>(
         [objc_dict objectForKey:@"HCISupportedFeatures"]);
 
     NSUInteger supported_features_index = 4;
     NSUInteger length = [data length];
     if (length < supported_features_index + 1)
       continue;
 
     // The bytes are indexed in reverse order.
     NSUInteger index = length - supported_features_index - 1;
 
     const unsigned char* bytes =
         static_cast<const unsigned char*>([data bytes]);
     const unsigned char byte = bytes[index];
     bool le_supported = byte & kBluetoothFeatureLESupportedController;
     if (le_supported)
       return BLUETOOTH_AVAILABLE_WITH_LE;
   }
 
   return bluetooth_available ? BLUETOOTH_AVAILABLE_WITHOUT_LE
                              : BLUETOOTH_AVAILABILITY_ERROR;
 }
 
 }  // namespace bluetooth_utility