Adjust PPAPI tests so they can also be run in the NaCl build using PyAuto.

ppapi/tests/testing_instance.cc

 // Copyright (c) 2011 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/tests/testing_instance.h"
 
 #include <algorithm>
 #include <cstring>
 #include <vector>
 
@@ skipping 35 matching lines @@
         errors_.append(" Test case could not initialize.");
       return true;
     }
   }
 
   // In DidChangeView, we'll dump out a list of all available tests.
   return true;
 }
 
 pp::Var TestingInstance::GetInstanceObject() {
-  return current_case_->GetTestObject();
+  if (current_case_)
+    return current_case_->GetTestObject();
+
+  return pp::Var(this, NULL);
 }
 
 void TestingInstance::HandleMessage(const pp::Var& message_data) {
   current_case_->HandleMessage(message_data);
 }
 
 void TestingInstance::DidChangeView(const pp::Rect& position,
                                     const pp::Rect& clip) {
   if (!executed_tests_) {
     executed_tests_ = true;
@@ skipping 41 matching lines @@
 
   if (!errors_.empty()) {
     // Catch initialization errors and output the current error string to
     // the console.
     LogError("Plugin initialization failed: " + errors_);
   } else if (!current_case_) {
     LogAvailableTests();
     errors_.append("FAIL: Only listed tests");
   } else {
     current_case_->RunTest();
+    // Automated PyAuto tests rely on finding the exact strings below.
+    LogHTML(errors_.empty() ?
+            "<span class=\"pass\">[SHUTDOWN]</span> All tests passed." :
+            "<span class=\"fail\">[SHUTDOWN]</span> Some tests failed.");
   }
 
   // Declare we're done by setting a cookie to either "PASS" or the errors.
   SetCookie("COMPLETION_COOKIE", errors_.empty() ? "PASS" : errors_);
 
   window.Call("DidExecuteTests");
 }
 
 TestCase* TestingInstance::CaseForTestName(const char* name) {
   TestCaseFactory* iter = TestCaseFactory::head_;
@@ skipping 65 matching lines @@
   }
 };
 
 namespace pp {
 
 Module* CreateModule() {
   return new ::Module();
 }
 
 }  // namespace pp