Presentation API: allow the Mojo service to reject a getAvailability() call.

content/browser/presentation/presentation_service_impl_unittest.cc

 // Copyright 2015 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 "base/location.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/test/test_timeouts.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 121 matching lines @@
 
 class MockPresentationServiceClient :
     public presentation::PresentationServiceClient {
  public:
   MOCK_METHOD1(OnScreenAvailabilityUpdated, void(bool available));
   void OnSessionStateChanged(
       presentation::PresentationSessionInfoPtr session_info,
       presentation::PresentationSessionState new_state) override {
     NOTIMPLEMENTED();
   }
+  void OnScreenAvailabilityNotSupported() override {
+    NOTIMPLEMENTED();
+  }
 };
 
 class PresentationServiceImplTest : public RenderViewHostImplTestHarness {
  public:
   PresentationServiceImplTest() : default_session_started_count_(0) {}
 
   void SetUp() override {
     RenderViewHostImplTestHarness::SetUp();
 
     auto request = mojo::GetProxy(&service_ptr_);
@@ skipping 680 matching lines @@
   service_ptr_->JoinSession(
         base::StringPrintf(presentation_url, i),
         base::StringPrintf(presentation_id, i),
         base::Bind(
             &PresentationServiceImplTest::ExpectNewSessionMojoCallbackError,
             base::Unretained(this)));
   SaveQuitClosureAndRunLoop();
 }
 
 }  // namespace content