Initial checkin of gRPC to third_party/

third_party/grpc/src/objective-c/RxLibrary/GRXBufferedPipe.h

Index: third_party/grpc/src/objective-c/RxLibrary/GRXBufferedPipe.h
diff --git a/third_party/WebKit/Source/core/css/CSSGridLineNamesValue.h b/third_party/grpc/src/objective-c/RxLibrary/GRXBufferedPipe.h
similarity index 54%
copy from third_party/WebKit/Source/core/css/CSSGridLineNamesValue.h
copy to third_party/grpc/src/objective-c/RxLibrary/GRXBufferedPipe.h
index 721b95240ed17d693c679416dde38025cfc2e4ce..03b0359278a24fbf7b3578166240fb4796102477 100644
--- a/third_party/WebKit/Source/core/css/CSSGridLineNamesValue.h
+++ b/third_party/grpc/src/objective-c/RxLibrary/GRXBufferedPipe.h
@@ -1,5 +1,7 @@
 /*
- * Copyright (C) 2013 Igalia, S.L. All rights reserved.
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -26,32 +28,35 @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
  */
 
-#ifndef CSSGridLineNamesValue_h
-#define CSSGridLineNamesValue_h
-
-#include "core/css/CSSValueList.h"
-#include "wtf/PassRefPtr.h"
-
-namespace blink {
-
-class CSSGridLineNamesValue : public CSSValueList {
-public:
-    static CSSGridLineNamesValue* create()
-    {
-        return new CSSGridLineNamesValue();
-    }
+#import <Foundation/Foundation.h>
 
-    String customCSSText() const;
+#import "GRXWriteable.h"
+#import "GRXWriter.h"
 
-    DEFINE_INLINE_TRACE_AFTER_DISPATCH() { CSSValueList::traceAfterDispatch(visitor); }
-
-private:
-    CSSGridLineNamesValue();
-};
+/**
+ * A buffered pipe is a Writer that also acts as a Writeable.
+ * Once it is started, whatever values are written into it (via -writeValue:) will be propagated
+ * immediately, unless flow control prevents it.
+ * If it is throttled and keeps receiving values, as well as if it receives values before being
+ * started, it will buffer them and propagate them in order as soon as its state becomes Started.
+ * If it receives an error (via -writesFinishedWithError:), it will drop any buffered values and
+ * propagate the error immediately.
+ *
+ * Beware that a pipe of this type can't prevent receiving more values when it is paused (for
+ * example if used to write data to a congested network connection). Because in such situations the
+ * pipe will keep buffering all data written to it, your application could run out of memory and
+ * crash. If you want to react to flow control signals to prevent that, instead of using this class
+ * you can implement an object that conforms to GRXWriter.
+ *
+ * Thread-safety:
+ * The methods of an object of this class should not be called concurrently from different threads.
+ */
+@interface GRXBufferedPipe : GRXWriter<GRXWriteable>
 
-DEFINE_CSS_VALUE_TYPE_CASTS(CSSGridLineNamesValue, isGridLineNamesValue());
-} // namespace blink
+/** Convenience constructor. */
++ (instancetype)pipe;
 
-#endif
+@end