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chrome_frame/stream_impl.cc

+// Copyright (c) 2010 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 "chrome_frame/stream_impl.h"
+
+#include "base/logging.h"
+
+void StreamImpl::Initialize(IStream* delegate) {
+  delegate_ = delegate;
+}
+
+STDMETHODIMP StreamImpl::Write(const void * buffer, ULONG size,
+                               ULONG* size_written) {
+  HRESULT hr = E_NOTIMPL;
+  if (delegate_)
+    hr = delegate_->Write(buffer, size, size_written);
+  return hr;
+}
+
+STDMETHODIMP StreamImpl::Read(void* pv, ULONG cb, ULONG* read) {
+  HRESULT hr = E_NOTIMPL;
+  if (delegate_)
+    hr = delegate_->Read(pv, cb, read);
+  return hr;
+}
+
+STDMETHODIMP StreamImpl::Seek(LARGE_INTEGER move, DWORD origin,
+                              ULARGE_INTEGER* new_pos) {
+  HRESULT hr = E_NOTIMPL;
+  if (delegate_)
+    hr = delegate_->Seek(move, origin, new_pos);
+  return hr;
+}
+
+STDMETHODIMP StreamImpl::SetSize(ULARGE_INTEGER new_size) {
+  HRESULT hr = E_NOTIMPL;
+  if (delegate_)
+    hr = delegate_->SetSize(new_size);
+  return hr;
+}
+
+STDMETHODIMP StreamImpl::CopyTo(IStream* stream, ULARGE_INTEGER cb,
+                                ULARGE_INTEGER* read,
+                                ULARGE_INTEGER* written) {
+  HRESULT hr = E_NOTIMPL;
+  if (delegate_)
+    hr = delegate_->CopyTo(stream, cb, read, written);
+  return hr;
+}
+
+STDMETHODIMP StreamImpl::Commit(DWORD flags) {
+  HRESULT hr = E_NOTIMPL;
+  if (delegate_)
+    hr = delegate_->Commit(flags);
+  return hr;
+}
+
+STDMETHODIMP StreamImpl::Revert() {
+  HRESULT hr = E_NOTIMPL;
+  if (delegate_)
+    hr = delegate_->Revert();
+  return hr;
+}
+
+STDMETHODIMP StreamImpl::LockRegion(ULARGE_INTEGER offset, ULARGE_INTEGER cb,
+                                    DWORD type) {
+  HRESULT hr = E_NOTIMPL;
+  if (delegate_)
+    hr = delegate_->LockRegion(offset, cb, type);
+  return hr;
+}
+
+STDMETHODIMP StreamImpl::UnlockRegion(ULARGE_INTEGER offset, ULARGE_INTEGER cb,
+                                      DWORD type) {
+  HRESULT hr = E_NOTIMPL;
+  if (delegate_)
+    hr = delegate_->UnlockRegion(offset, cb, type);
+  return hr;
+}
+
+STDMETHODIMP StreamImpl::Stat(STATSTG* statstg, DWORD flag) {
+  HRESULT hr = E_NOTIMPL;
+  if (delegate_)
+    hr = delegate_->Stat(statstg, flag);
+  return hr;
+}
+
+STDMETHODIMP StreamImpl::Clone(IStream** stream) {
+  HRESULT hr = E_NOTIMPL;
+  if (delegate_)
+    hr = delegate_->Clone(stream);
+  return hr;
+}
+