Initial checkin of gRPC to third_party/

third_party/grpc/src/core/channel/compress_filter.h

Index: third_party/grpc/src/core/channel/compress_filter.h
diff --git a/third_party/WebKit/Source/core/fileapi/FileReaderLoaderClient.h b/third_party/grpc/src/core/channel/compress_filter.h
similarity index 54%
copy from third_party/WebKit/Source/core/fileapi/FileReaderLoaderClient.h
copy to third_party/grpc/src/core/channel/compress_filter.h
index 9494f88f397b66546e80f957ffdbd2db99a9161a..415459bca60991261a74e09b099119a2bf7242b4 100644
--- a/third_party/WebKit/Source/core/fileapi/FileReaderLoaderClient.h
+++ b/third_party/grpc/src/core/channel/compress_filter.h
@@ -1,5 +1,7 @@
 /*
- * Copyright (C) 2010 Google Inc.  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
@@ -26,29 +28,38 @@
  * 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 FileReaderLoaderClient_h
-#define FileReaderLoaderClient_h
+#ifndef GRPC_INTERNAL_CORE_CHANNEL_COMPRESS_FILTER_H
+#define GRPC_INTERNAL_CORE_CHANNEL_COMPRESS_FILTER_H
 
-#include "core/CoreExport.h"
-#include "core/fileapi/FileError.h"
+#include "src/core/channel/channel_stack.h"
 
-namespace blink {
+#define GRPC_COMPRESS_REQUEST_ALGORITHM_KEY "grpc-internal-encoding-request"
 
-class CORE_EXPORT FileReaderLoaderClient {
-public:
-    virtual ~FileReaderLoaderClient() {}
-
-    virtual void didStartLoading() = 0;
-    // Clients must implement this method if they are using any ReadType except ReadByClient.
-    virtual void didReceiveData() { ASSERT_NOT_REACHED(); }
-    // Clients must implement this method if they are using the ReadByClient ReadType.
-    virtual void didReceiveDataForClient(const char* data, unsigned dataLength) { ASSERT_NOT_REACHED(); }
-    virtual void didFinishLoading() = 0;
-    virtual void didFail(FileError::ErrorCode) = 0;
-};
+/** Compression filter for outgoing data.
+ *
+ * See <grpc/compression.h> for the available compression settings.
+ *
+ * Compression settings may come from:
+ *  - Channel configuration, as established at channel creation time.
+ *  - The metadata accompanying the outgoing data to be compressed. This is
+ *    taken as a request only. We may choose not to honor it. The metadata key
+ *    is given by \a GRPC_COMPRESS_REQUEST_ALGORITHM_KEY.
+ *
+ * Compression can be disabled for concrete messages (for instance in order to
+ * prevent CRIME/BEAST type attacks) by having the GRPC_WRITE_NO_COMPRESS set in
+ * the BEGIN_MESSAGE flags.
+ *
+ * The attempted compression mechanism is added to the resulting initial
+ * metadata under the'grpc-encoding' key.
+ *
+ * If compression is actually performed, BEGIN_MESSAGE's flag is modified to
+ * incorporate GRPC_WRITE_INTERNAL_COMPRESS. Otherwise, and regardless of the
+ * aforementioned 'grpc-encoding' metadata value, data will pass through
+ * uncompressed. */
 
-} // namespace blink
+extern const grpc_channel_filter grpc_compress_filter;
 
-#endif // FileReaderLoaderClient_h
+#endif /* GRPC_INTERNAL_CORE_CHANNEL_COMPRESS_FILTER_H */