Initial implementation of ServiceWorkerCache.

net/base/io_buffer.h

Index: net/base/io_buffer.h
diff --git a/net/base/io_buffer.h b/net/base/io_buffer.h
index 0ce52e8d79c02473adabd6af98e2e9272d9b2fdb..53b325358a40230e86d7095a2000abeeb1de67d2 100644
--- a/net/base/io_buffer.h
+++ b/net/base/io_buffer.h
@@ -115,6 +115,11 @@ class NET_EXPORT StringIOBuffer : public IOBuffer {
  public:
   explicit StringIOBuffer(const std::string& s);
 
+  // The string passed to this constructor is std::string::swap'd with the

[michaeln, 2014/08/21 01:46:15]

Given the scoped_ptr<> input, the xfer of ownership of the string is clear and
the swap method usage is an impl detail. Consider removing the comment
altogether?

[jkarlin, 2014/08/21 18:31:21]

Done.

+  // internal string. This is a low cost way to prevent a copy for strings that
+  // don't provide copy-on-write semantics.
+  explicit StringIOBuffer(scoped_ptr<std::string> s);
+
   int size() const { return static_cast<int>(string_data_.size()); }
 
  private: