Initial implementation of ServiceWorkerCache.

net/base/io_buffer.cc

Index: net/base/io_buffer.cc
diff --git a/net/base/io_buffer.cc b/net/base/io_buffer.cc
index dd1d4517eeab06721b62d3f70faf7c91f3a885d1..a375381bfd9bdc51f018506e0dbe6093647e7df2 100644
--- a/net/base/io_buffer.cc
+++ b/net/base/io_buffer.cc
@@ -46,6 +46,13 @@ StringIOBuffer::StringIOBuffer(const std::string& s)
   data_ = const_cast<char*>(string_data_.data());
 }
 
+StringIOBuffer::StringIOBuffer(scoped_ptr<std::string> s)
+    : IOBuffer(static_cast<char*>(NULL)) {
+  CHECK_LT(s->size(), static_cast<size_t>(INT_MAX));
+  string_data_.swap(*s.get());
+  data_ = const_cast<char*>(string_data_.data());
+}
+
 StringIOBuffer::~StringIOBuffer() {
   // We haven't allocated the buffer, so remove it before the base class
   // destructor tries to delete[] it.