Don't process messages sent to dead routing ids.

content/browser/web_contents/web_contents_impl_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 <stdint.h>
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 3297 matching lines @@
   contents()->GetMainFrame()->GetProcess()->SimulateCrash();
 
   // Verify that all the power save blockers have been released.
   EXPECT_FALSE(has_video_power_save_blocker());
   EXPECT_FALSE(has_audio_power_save_blocker());
 }
 
 TEST_F(WebContentsImplTest, ThemeColorChangeDependingOnFirstVisiblePaint) {
   TestWebContentsObserver observer(contents());
   TestRenderFrameHost* rfh = contents()->GetMainFrame();
+  rfh->InitializeRenderFrameIfNeeded();
 
   SkColor transparent = SK_ColorTRANSPARENT;
 
   EXPECT_EQ(transparent, contents()->GetThemeColor());
   EXPECT_EQ(transparent, observer.last_theme_color());
 
   // Theme color changes should not propagate past the WebContentsImpl before
   // the first visually non-empty paint has occurred.
   RenderViewHostTester::TestOnMessageReceived(
       test_rvh(),
@@ skipping 45 matching lines @@
   backend->AllowCertForHost(*cert, test_url.host(), 1);
   EXPECT_TRUE(backend->HasAllowException(test_url.host()));
 
   contents()->OnDidLoadResourceFromMemoryCache(test_url, "", "GET", "mime type",
                                                RESOURCE_TYPE_MAIN_FRAME);
 
   EXPECT_TRUE(backend->HasAllowException(test_url.host()));
 }
 
 }  // namespace content