move header to implement

Author: longbai

QiniuSDK/Http/QNStats.h

@@ -9,14 +9,14 @@
 
 
 #import <Foundation/Foundation.h>
-#import "AFNetworking.h"
-#import "HappyDns.h"
+
 
 #if TARGET_OS_IPHONE
 #import "QNReachability.h"
 #import <CoreTelephony/CTTelephonyNetworkInfo.h>
 #endif
 
+@class QNDnsManager;
 @interface QNStats : NSObject
 
 #if TARGET_OS_IPHONE

QiniuSDK/Http/QNStats.m

@@ -13,6 +13,8 @@
 
 //#import "GZIP.h"
 #import "QNStats.h"
+#import "AFNetworking.h"
+#import "HappyDns.h"
 
 void setStat(NSMutableDictionary *dic, id key, id value) {
 	if (value == nil || dic == nil) {