1 files changed, 89 insertions, 0 deletions
diff --git a/net/base/io_buffer.cc b/net/base/io_buffer.cc
index 9ad0570..b922733 100644
--- a/net/base/io_buffer.cc
+++ b/net/base/io_buffer.cc
@@ -8,17 +8,81 @@
 
 namespace net {
 
+IOBuffer::IOBuffer()
+    : data_(NULL) {
+}
+
 IOBuffer::IOBuffer(int buffer_size) {
   DCHECK(buffer_size > 0);
   data_ = new char[buffer_size];
 }
 
+IOBuffer::IOBuffer(char* data)
+    : data_(data) {
+}
+
+IOBuffer::~IOBuffer() {
+  delete[] data_;
+}
+
+IOBufferWithSize::IOBufferWithSize(int size)
+    : IOBuffer(size),
+      size_(size) {
+}
+
+StringIOBuffer::StringIOBuffer(const std::string& s)
+    : IOBuffer(static_cast<char*>(NULL)),
+      string_data_(s) {
+  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.
+  data_ = NULL;
+}
+
+DrainableIOBuffer::DrainableIOBuffer(IOBuffer* base, int size)
+    : IOBuffer(base->data()),
+      base_(base),
+      size_(size),
+      used_(0) {
+}
+
+DrainableIOBuffer::~DrainableIOBuffer() {
+  // The buffer is owned by the |base_| instance.
+  data_ = NULL;
+}
+
+void DrainableIOBuffer::DidConsume(int bytes) {
+  SetOffset(used_ + bytes);
+}
+
+int DrainableIOBuffer::BytesRemaining() const {
+  return size_ - used_;
+}
+
+// Returns the number of consumed bytes.
+int DrainableIOBuffer::BytesConsumed() const {
+  return used_;
+}
+
 void DrainableIOBuffer::SetOffset(int bytes) {
   DCHECK(bytes >= 0 && bytes <= size_);
   used_ = bytes;
   data_ = base_->data() + used_;
 }
 
+GrowableIOBuffer::GrowableIOBuffer()
+    : IOBuffer(),
+      capacity_(0),
+      offset_(0) {
+}
+
+GrowableIOBuffer::~GrowableIOBuffer() {
+  data_ = NULL;
+}
+
 void GrowableIOBuffer::SetCapacity(int capacity) {
   DCHECK(capacity >= 0);
   // realloc will crash if it fails.
@@ -36,4 +100,29 @@ void GrowableIOBuffer::set_offset(int offset) {
   data_ = real_data_.get() + offset;
 }
 
+int GrowableIOBuffer::RemainingCapacity() {
+  return capacity_ - offset_;
+}
+
+char* GrowableIOBuffer::StartOfBuffer() {
+  return real_data_.get();
+}
+
+PickledIOBuffer::PickledIOBuffer() : IOBuffer() {}
+
+PickledIOBuffer::~PickledIOBuffer() { data_ = NULL; }
+
+void PickledIOBuffer::Done() {
+  data_ = const_cast<char*>(static_cast<const char*>(pickle_.data()));
+}
+
+
+WrappedIOBuffer::WrappedIOBuffer(const char* data)
+    : IOBuffer(const_cast<char*>(data)) {
+}
+
+WrappedIOBuffer::~WrappedIOBuffer() {
+  data_ = NULL;
+}
+
 }  // namespace net