Cloning a bunch of stuff from the native_client repository at r6528

ppapi/native_client/src/shared/ppapi_proxy/browser_ppp_scrollbar.cc

Index: ppapi/native_client/src/shared/ppapi_proxy/browser_ppp_scrollbar.cc
===================================================================
--- ppapi/native_client/src/shared/ppapi_proxy/browser_ppp_scrollbar.cc	(revision 0)
+++ ppapi/native_client/src/shared/ppapi_proxy/browser_ppp_scrollbar.cc	(revision 0)
@@ -0,0 +1,68 @@
+// Copyright (c) 2011 The Native Client 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 "native_client/src/shared/ppapi_proxy/browser_ppp_scrollbar.h"
+
+// Include file order cannot be observed because ppp_instance declares a
+// structure return type that causes an error on Windows.
+// TODO(sehr, brettw): fix the return types and include order in PPAPI.
+#include "ppapi/c/pp_instance.h"
+#include "ppapi/c/pp_resource.h"
+#include "srpcgen/ppp_rpc.h"
+#include "native_client/src/include/portability.h"
+#include "native_client/src/shared/ppapi_proxy/browser_globals.h"
+#include "native_client/src/shared/ppapi_proxy/browser_ppp.h"
+#include "native_client/src/shared/ppapi_proxy/utility.h"
+
+namespace ppapi_proxy {
+
+namespace {
+
+void ValueChanged(
+    PP_Instance instance,
+    PP_Resource resource,
+    uint32_t value) {
+  DebugPrintf("PPP_Scrollbar_Dev::ValueChanged: instance=%"NACL_PRIu32"\n",
+              instance);
+
+  NaClSrpcError srpc_result = PppScrollbarRpcClient::PPP_Scrollbar_ValueChanged(
+      GetMainSrpcChannel(instance),
+      instance,
+      resource,
+      value);
+
+  DebugPrintf("PPP_Scrollbar_Dev::ValueChanged: %s\n",
+              NaClSrpcErrorString(srpc_result));
+}
+
+void OverlayChanged(
+    PP_Instance instance,
+    PP_Resource resource,
+    PP_Bool type) {
+  DebugPrintf("PPP_Scrollbar_Dev::OverlayChanged: instance=%"NACL_PRIu32"\n",
+              instance);
+
+  NaClSrpcError srpc_result =
+      PppScrollbarRpcClient::PPP_Scrollbar_OverlayChanged(
+          GetMainSrpcChannel(instance),
+          instance,
+          resource,
+          type);
+
+  DebugPrintf("PPP_Scrollbar_Dev::OverlayChanged: %s\n",
+              NaClSrpcErrorString(srpc_result));
+}
+
+}  // namespace
+
+const PPP_Scrollbar_Dev* BrowserScrollbar::GetInterface() {
+  static const PPP_Scrollbar_Dev scrollbar_interface = {
+    ValueChanged,
+    OverlayChanged
+  };
+  return &scrollbar_interface;
+}
+
+}  // namespace ppapi_proxy
+