Pepper: Access PepperMediaDeviceManager through a WeakPtr

content/renderer/pepper/pepper_device_enumeration_host_helper_unittest.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 <map>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
+#include "base/memory/weak_ptr.h"
 #include "content/renderer/pepper/pepper_device_enumeration_host_helper.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/host/host_message_context.h"
 #include "ppapi/host/ppapi_host.h"
 #include "ppapi/host/resource_host.h"
 #include "ppapi/proxy/ppapi_message_utils.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/resource_message_params.h"
 #include "ppapi/proxy/resource_message_test_sink.h"
 #include "ppapi/shared_impl/ppapi_permissions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 namespace content {
 
 namespace {
 
-class TestDelegate : public PepperDeviceEnumerationHostHelper::Delegate {
+class TestDelegate : public PepperDeviceEnumerationHostHelper::Delegate,
+                     public base::SupportsWeakPtr<TestDelegate> {
  public:
   TestDelegate() : last_used_id_(0) {}
 
   virtual ~TestDelegate() { CHECK(callbacks_.empty()); }
 
   virtual int EnumerateDevices(PP_DeviceType_Dev /* type */,
                                const GURL& /* document_url */,
                                const EnumerateDevicesCallback& callback)
       override {
     last_used_id_++;
@@ skipping 31 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(TestDelegate);
 };
 
 class PepperDeviceEnumerationHostHelperTest : public testing::Test {
  protected:
   PepperDeviceEnumerationHostHelperTest()
       : ppapi_host_(&sink_, ppapi::PpapiPermissions()),
         resource_host_(&ppapi_host_, 12345, 67890),
         device_enumeration_(&resource_host_,
-                            &delegate_,
+                            delegate_.AsWeakPtr(),
                             PP_DEVICETYPE_DEV_AUDIOCAPTURE,
                             GURL("http://example.com")) {}
 
   virtual ~PepperDeviceEnumerationHostHelperTest() {}
 
   void SimulateMonitorDeviceChangeReceived(uint32_t callback_id) {
     PpapiHostMsg_DeviceEnumeration_MonitorDeviceChange msg(callback_id);
     ppapi::proxy::ResourceMessageCallParams call_params(
         resource_host_.pp_resource(), 123);
     ppapi::host::HostMessageContext context(call_params);
@@ skipping 135 matching lines @@
   ppapi::host::HostMessageContext context(call_params);
   int32_t result = PP_ERROR_FAILED;
   ASSERT_TRUE(
       device_enumeration_.HandleResourceMessage(msg, &context, &result));
   EXPECT_EQ(PP_OK, result);
 
   EXPECT_EQ(0U, delegate_.GetRegisteredCallbackCount());
 }
 
 }  // namespace content