Implement the file chooser as a new resource "host"

ppapi/proxy/ppapi_proxy_test.cc

 // Copyright (c) 2012 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 "ppapi/proxy/ppapi_proxy_test.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/message_loop_proxy.h"
 #include "base/observer_list.h"
@@ skipping 388 matching lines @@
       base::Bind(&TearDownRemoteHarness,
                  remote_harness_,
                  &remote_harness_torn_down));
   remote_harness_torn_down.Wait();
 
   local_harness_->TearDownHarness();
 
   io_thread_.Stop();
 }
 
+// ScopedPPResource -----------------------------------------------------------
+
+/*
+ScopedPPResource::ScopedPPResource() : resource_(0) {
+}
+
+ScopedPPResource::ScopedPPResource(PP_Resource r) : resource_(r) {
+}
+
+ScopedPPResource::ScopedPPResource(const ScopedPPResource& other)
+    : resource_(other.resource_) {
+  PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(resource_);
+}
+
+ScopedPPResource::~ScopedPPResource() {
+  PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(resource_);
+}
+
+ScopedPPResource& ScopedPPResource::operator=(PP_Resource r) {
+  if (r)
+    PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(r);
+  if (resource_)
+    PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(resource_);
+  resource_ = r;
+  return *this;
+}
+*/
+// ScopedPPVar ----------------------------------------------------------------
+
+ScopedPPVar::ScopedPPVar() : var_(PP_MakeUndefined()) {
+}
+
+ScopedPPVar::ScopedPPVar(const PP_Var& v) : var_(v) {
+}
+
+ScopedPPVar::ScopedPPVar(const ScopedPPVar& other)
+    : var_(other.var_) {
+  PpapiGlobals::Get()->GetVarTracker()->AddRefVar(var_);
+}
+
+ScopedPPVar::~ScopedPPVar() {
+  PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(var_);
+}
+
+ScopedPPVar& ScopedPPVar::operator=(const PP_Var& v) {
+  PpapiGlobals::Get()->GetVarTracker()->AddRefVar(v);
+  PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(var_);
+  var_ = v;
+  return *this;
+}
 
 }  // namespace proxy
 }  // namespace ppapi