Initial version of Blimp BlobCache.

blimp/common/proto/blob_cache.proto

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// Message definitions related to the BlobCache.
+
+syntax = "proto2";
+
+option optimize_for = LITE_RUNTIME;
+
+package blimp;
+
+// An representation sent from the engine to the client for retrieving an image
+// from the cache or reading from |payload|.
+message BlobCacheImageMetadata {
+  optional bytes id = 1;
+  optional int32 width = 2;
+  optional int32 height = 3;
+  // TODO(nyquist): Remove |payload| after incorporation of BlobChannel.
+  optional bytes payload = 4;
+}