Add a size estimation mechanism to StoragePartitionHttpCacheDataRemover.

net/base/upload_disk_cache_entry_element_reader_unittest.cc

 // Copyright 2015 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 "net/base/upload_disk_cache_entry_element_reader.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <string>
@@ skipping 52 matching lines @@
   base::Time GetLastUsed() const override { return entry_->GetLastUsed(); }
 
   base::Time GetLastModified() const override {
     return entry_->GetLastModified();
   }
 
   int32 GetDataSize(int index) const override {
     return entry_->GetDataSize(index);
   }
 
+  int GetEntrySize() const override {
+    return entry_->GetEntrySize();
+  }
+
   int ReadData(int index,
                int offset,
                IOBuffer* buf,
                int buf_len,
                const CompletionCallback& original_callback) override {
     TestCompletionCallback callback;
     int rv = entry_->ReadData(index, offset, buf, buf_len, callback.callback());
     DCHECK_NE(rv, ERR_IO_PENDING)
         << "Test expects to use a MEMORY_CACHE instance, which is synchronous.";
     pending_read_callbacks_.push_back(base::Bind(original_callback, rv));
@@ skipping 239 matching lines @@
   TestCompletionCallback callback;
   int rv = reader.Read(io_buffer.get(), kLength, callback.callback());
   EXPECT_EQ(static_cast<int>(kLength), callback.GetResult(rv));
   EXPECT_EQ(0U, reader.BytesRemaining());
   EXPECT_EQ(std::string(kData + kOffset, kLength),
             std::string(read_buffer, kLength));
 }
 
 }  // namespace
 }  // namespace net