Add a size estimation mechanism to StoragePartitionHttpCacheDataRemover.

net/disk_cache/blockfile/entry_impl_v3.cc

 // Copyright (c) 2012 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/disk_cache/blockfile/entry_impl_v3.h"
 
 #include "base/hash.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_util.h"
 #include "net/base/io_buffer.h"
@@ skipping 503 matching lines @@
 }
 
 int32 EntryImplV3::GetDataSize(int index) const {
   if (index < 0 || index >= kNumStreams)
     return 0;
 
   CacheEntryBlock* entry = const_cast<CacheEntryBlock*>(&entry_);
   return entry->Data()->data_size[index];
 }
 
+int EntryImplV3::GetEntrySize() const {
+  int result = 0;
+  for (int i = 0; i < kNumStreams; ++i)
+    result += GetDataSize(i);
+  return result;
+}
+
 int EntryImplV3::ReadData(int index, int offset, IOBuffer* buf, int buf_len,
                           const CompletionCallback& callback) {
   if (callback.is_null())
     return ReadDataImpl(index, offset, buf, buf_len, callback);
 
   DCHECK(node_.Data()->dirty || read_only_);
   if (index < 0 || index >= kNumStreams)
     return net::ERR_INVALID_ARGUMENT;
 
   int entry_size = entry_.Data()->data_size[index];
@@ skipping 878 matching lines @@
 }
 
 Time EntryImplV3::GetLastModified() const {
   return Time();
 }
 
 int32 EntryImplV3::GetDataSize(int index) const {
   return 0;
 }
 
+int EntryImplV3::GetEntrySize() const {
+  return 0;
+}
+
 int EntryImplV3::ReadData(int index, int offset, IOBuffer* buf, int buf_len,
                           const CompletionCallback& callback) {
   return net::ERR_FAILED;
 }
 
 int EntryImplV3::WriteData(int index, int offset, IOBuffer* buf, int buf_len,
                            const CompletionCallback& callback, bool truncate) {
   return net::ERR_FAILED;
 }
 
@@ skipping 22 matching lines @@
 
 int EntryImplV3::ReadyForSparseIO(const CompletionCallback& callback) {
   return net::ERR_FAILED;
 }
 
 EntryImplV3::~EntryImplV3() {
   NOTIMPLEMENTED();
 }
 
 }  // namespace disk_cache