Linux: server side backing stores

chrome/browser/renderer_host/backing_store_xcb.cc

-// Copyright (c) 2006-2008 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/browser/renderer_host/backing_store.h"
-
-#include <xcb/xcb.h>
-
-#include "base/logging.h"
-#include "chrome/common/transport_dib.h"
-
-#ifdef NDEBUG
-#define XCB_CALL(func, ...) func(__VA_ARGS__)
-#else
-#define XCB_CALL(func, ...) do { \
-  xcb_void_cookie_t cookie = func##_checked(__VA_ARGS__); \
-  xcb_generic_error_t* error = xcb_request_check(connection_, cookie); \
-  if (error) { \
-    CHECK(false) << "XCB error" \
-                 << " code:" << error->error_code \
-                 << " type:" << error->response_type \
-                 << " sequence:" << error->sequence; \
-  } \
-} while(false);
-#endif
-
-BackingStore::BackingStore(const gfx::Size& size,
-                           xcb_connection_t* connection,
-                           xcb_window_t window,
-                           bool use_shared_memory)
-    : connection_(connection),
-      use_shared_memory_(use_shared_memory),
-      pixmap_(xcb_generate_id(connection)) {
-  XCB_CALL(xcb_create_pixmap, connection_, 32, pixmap, window, size.width(),
-           size.height());
-}
-
-BackingStore::~BackingStore() {
-  XCB_CALL(xcb_free_pixmap, pixmap_);
-}