Improve process crash handling in RenderViewHost & mock RenderProcessHost.

content/public/test/test_renderer_host.cc

Index: content/public/test/test_renderer_host.cc
diff --git a/content/public/test/test_renderer_host.cc b/content/public/test/test_renderer_host.cc
index 73dcca252dc1a1e9dd9bb097ef033075405ddae6..d8847791a77f9dd1449664c8978b8450184646e1 100644
--- a/content/public/test/test_renderer_host.cc
+++ b/content/public/test/test_renderer_host.cc
@@ -151,6 +151,7 @@ WebContents* RenderViewHostTestHarness::CreateTestWebContents() {
 
   // This will be deleted when the WebContentsImpl goes away.
   SiteInstance* instance = SiteInstance::Create(browser_context_.get());
+  instance->GetProcess()->Init();
 
   return TestWebContents::Create(browser_context_.get(), instance);
 }