[react-packager][streamline oss] Move open sourced JS source to react-native-github

ReactKit/Base/RCTCache.h

@@ -0,0 +1,22 @@
+// Copyright 2004-present Facebook. All Rights Reserved.
+
+#import <Foundation/Foundation.h>
+
+@interface RCTCache : NSObject
+
+- (instancetype)init; // name = @"default"
+- (instancetype)initWithName:(NSString *)name;
+
+@property (nonatomic, assign) NSUInteger maximumDiskSize; // in bytes
+
+#pragma mark - Retrieval
+
+- (BOOL)hasDataForKey:(NSString *)key;
+- (void)fetchDataForKey:(NSString *)key completionHandler:(void (^)(NSData *data))completionHandler;
+
+#pragma mark - Insertion
+
+- (void)setData:(NSData *)data forKey:(NSString *)key;
+- (void)removeAllData;
+
+@end