Update third_party/protobuf to protobuf-v3.0.0-beta-3

third_party/protobuf/objectivec/Tests/GPBCodedOuputStreamTests.m

Index: third_party/protobuf/objectivec/Tests/GPBCodedOuputStreamTests.m
diff --git a/third_party/protobuf/objectivec/Tests/GPBCodedOuputStreamTests.m b/third_party/protobuf/objectivec/Tests/GPBCodedOuputStreamTests.m
index 77d88033db2be603ee7ed30d9aa1616aec8ae62c..0723b645f75c2c79733dee19fbb95a3b43d42a5f 100644
--- a/third_party/protobuf/objectivec/Tests/GPBCodedOuputStreamTests.m
+++ b/third_party/protobuf/objectivec/Tests/GPBCodedOuputStreamTests.m
@@ -30,11 +30,30 @@
 
 #import "GPBTestUtilities.h"
 
-#import "GPBCodedOutputStream.h"
+#import "GPBCodedOutputStream_PackagePrivate.h"
 #import "GPBCodedInputStream.h"
 #import "GPBUtilities_PackagePrivate.h"
 #import "google/protobuf/Unittest.pbobjc.h"
 
+@interface GPBCodedOutputStream (InternalMethods)
+// Declared in the .m file, expose for testing.
+- (instancetype)initWithOutputStream:(NSOutputStream *)output
+                                data:(NSMutableData *)data;
+@end
+
+@interface GPBCodedOutputStream (Helper)
++ (instancetype)streamWithOutputStream:(NSOutputStream *)output
+                            bufferSize:(size_t)bufferSize;
+@end
+
+@implementation GPBCodedOutputStream (Helper)
++ (instancetype)streamWithOutputStream:(NSOutputStream *)output
+                            bufferSize:(size_t)bufferSize {
+  NSMutableData *data = [NSMutableData dataWithLength:bufferSize];
+  return [[[self alloc] initWithOutputStream:output data:data] autorelease];
+}
+@end
+
 @interface CodedOutputStreamTests : GPBTestCase
 @end