Switch DomAutomationController to be a RenderFrameObserver.

chrome/test/ppapi/ppapi_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 "chrome/test/ppapi/ppapi_test.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/strings/string_util.h"
@@ skipping 259 matching lines @@
   }
 #endif
 
   // See comment above TestingInstance in ppapi/test/testing_instance.h.
   // Basically it sends messages using the DOM automation controller. The
   // value of "..." means it's still working and we should continue to wait,
   // any other value indicates completion (in this case it will start with
   // "PASS" or "FAIL"). This keeps us from timing out on waits for long tests.
   PPAPITestMessageHandler handler;
   JavascriptTestObserver observer(
-      browser()->tab_strip_model()->GetActiveWebContents()->GetRenderViewHost(),
+      browser()->tab_strip_model()->GetActiveWebContents(),
       &handler);
 
   ui_test_utils::NavigateToURL(browser(), test_url);
 
   ASSERT_TRUE(observer.Run()) << handler.error_message();
   EXPECT_STREQ("PASS", handler.message().c_str());
 }
 
 GURL PPAPITestBase::GetTestURL(
     const net::SpawnedTestServer& http_server,
@@ skipping 122 matching lines @@
     const std::string& base,
     const std::string& test_case) {
   return base::StringPrintf("%smode=nacl_newlib&testcase=%s", base.c_str(),
                             test_case.c_str());
 }
 
 void PPAPIBrokerInfoBarTest::SetUpOnMainThread() {
   // The default content setting for the PPAPI broker is ASK. We purposefully
   // don't call PPAPITestBase::SetUpOnMainThread() to keep it that way.
 }