This adds some plumbing for propagating the reason for a renderer's death

chrome/browser/renderer_host/render_widget_host_unittest.cc

 // Copyright (c) 2009 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 "app/keyboard_codes.h"
 #include "base/basictypes.h"
 #include "base/scoped_ptr.h"
 #include "base/shared_memory.h"
 #include "base/timer.h"
 #include "build/build_config.h"
@@ skipping 379 matching lines @@
   view_->set_bounds(original_size);
   host_->WasResized();
   EXPECT_TRUE(host_->resize_ack_pending_);
   EXPECT_EQ(original_size.size(), host_->in_flight_size_);
   EXPECT_TRUE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
 
   // Simulate a renderer crash before the update message.  Ensure all the
   // resize ack logic is cleared.  Must clear the view first so it doesn't get
   // deleted.
   host_->set_view(NULL);
-  host_->RendererExited();
+  host_->RendererExited(base::TERMINATION_STATUS_PROCESS_CRASHED, -1);
   EXPECT_FALSE(host_->resize_ack_pending_);
   EXPECT_EQ(gfx::Size(), host_->in_flight_size_);
 
   // Reset the view so we can exit the test cleanly.
   host_->set_view(view_.get());
 }
 
 // Tests setting custom background
 TEST_F(RenderWidgetHostTest, Background) {
 #if defined(OS_WIN) || defined(OS_LINUX)
@@ skipping 293 matching lines @@
   // Start it again to ensure it still works.
   EXPECT_FALSE(host_->unresponsive_timer_fired());
   host_->StartHangMonitorTimeout(TimeDelta::FromMilliseconds(10));
 
   // Wait long enough for first timeout and see if it fired.
   MessageLoop::current()->PostDelayedTask(FROM_HERE,
                                           new MessageLoop::QuitTask(), 10);
   MessageLoop::current()->Run();
   EXPECT_TRUE(host_->unresponsive_timer_fired());
 }