Incorporate BlobChannel into Blimp image encode/decode pipeline.

blimp/net/blob_channel/blob_channel_sender.cc

-// 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.
-
-#include "blimp/net/blob_channel/blob_channel_sender.h"
-
-#include "base/strings/string_number_conversions.h"
-#include "blimp/common/blob_cache/blob_cache.h"
-#include "blimp/common/blob_cache/id_util.h"
-
-namespace blimp {
-
-BlobChannelSender::BlobChannelSender(std::unique_ptr<BlobCache> cache,
-                                     std::unique_ptr<Delegate> delegate)
-    : cache_(std::move(cache)), delegate_(std::move(delegate)) {
-  DCHECK(cache_);
-  DCHECK(delegate_);
-}
-
-BlobChannelSender::~BlobChannelSender() {}
-
-void BlobChannelSender::PutBlob(const BlobId& id, BlobDataPtr data) {
-  DCHECK(data);
-  DCHECK(!id.empty());
-
-  if (cache_->Contains(id)) {
-    return;
-  }
-
-  VLOG(2) << "Put blob: " << BlobIdToString(id);
-  cache_->Put(id, data);
-}
-
-void BlobChannelSender::DeliverBlob(const BlobId& id) {
-  if (!cache_->Contains(id)) {
-    DLOG(FATAL) << "Attempted to push unknown blob: " << BlobIdToString(id);
-    return;
-  }
-
-  if (receiver_cache_contents_.find(id) != receiver_cache_contents_.end()) {
-    DVLOG(3) << "Suppressed redundant push: " << BlobIdToString(id);
-    return;
-  }
-  receiver_cache_contents_.insert(id);
-
-  VLOG(2) << "Deliver blob: " << BlobIdToString(id);
-  delegate_->DeliverBlob(id, cache_->Get(id));
-}
-
-}  // namespace blimp