Cancels prerendering on prerendering RenderView crash

chrome/browser/prerender/prerender_contents.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 "chrome/browser/prerender/prerender_contents.h"
 
 #include "base/i18n/rtl.h"
 #include "base/process_util.h"
 #include "base/task.h"
 #include "base/utf_string_conversions.h"
@@ skipping 229 matching lines @@
 }
 
 ViewType::Type PrerenderContents::GetRenderViewType() const {
   return ViewType::BACKGROUND_CONTENTS;
 }
 
 int PrerenderContents::GetBrowserWindowID() const {
   return extension_misc::kUnknownWindowId;
 }
 
+void PrerenderContents::RenderViewGone(RenderViewHost* render_view_host,
+                                       base::TerminationStatus status,
+                                       int error_code) {
+  DCHECK_EQ(render_view_host_, render_view_host);
+  // Cancel the prerender if the RenderView crashes.
+  Destroy(FINAL_STATUS_RENDERER_CRASHED);
+}
+
 void PrerenderContents::DidNavigate(
     RenderViewHost* render_view_host,
     const ViewHostMsg_FrameNavigate_Params& params) {
+  DCHECK_EQ(render_view_host_, render_view_host);
+
   // We only care when the outer frame changes.
   if (!PageTransition::IsMainFrame(params.transition))
     return;
 
   // Store the navigation params.
   ViewHostMsg_FrameNavigate_Params* p = new ViewHostMsg_FrameNavigate_Params();
   *p = params;
   navigate_params_.reset(p);
 
   if (!AddAliasURL(params.url)) {
     Destroy(FINAL_STATUS_HTTPS);
     return;
   }
 
   url_ = params.url;
 }
 
 void PrerenderContents::UpdateTitle(
     RenderViewHost* render_view_host,
     int32 page_id,
     const base::i18n::String16WithDirection& title) {
+  DCHECK_EQ(render_view_host_, render_view_host);
   if (title.string().empty())
     return;
 
   // TODO(evan): use directionality of title.
   // http://code.google.com/p/chromium/issues/detail?id=27094
   title_ = title.string();
   page_id_ = page_id;
 }
 
 void PrerenderContents::RunJavaScriptMessage(
@@ skipping 236 matching lines @@
   set_final_status(final_status);
   delete this;
 }
 
 void PrerenderContents::OnJSOutOfMemory() {
   Destroy(FINAL_STATUS_JS_OUT_OF_MEMORY);
 }
 
 void PrerenderContents::RendererUnresponsive(RenderViewHost* render_view_host,
                                              bool is_during_unload) {
+  DCHECK_EQ(render_view_host_, render_view_host);
   Destroy(FINAL_STATUS_RENDERER_UNRESPONSIVE);
 }
 
 
 base::ProcessMetrics* PrerenderContents::MaybeGetProcessMetrics() {
   if (process_metrics_.get() == NULL) {
     // If a PrenderContents hasn't started prerending, don't be fully formed.
     if (!render_view_host_ || !render_view_host_->process())
       return NULL;
     base::ProcessHandle handle = render_view_host_->process()->GetHandle();
@@ skipping 17 matching lines @@
     return;
 
   size_t private_bytes, shared_bytes;
   if (metrics->GetMemoryBytes(&private_bytes, &shared_bytes)) {
     if (private_bytes > kMaxPrerenderPrivateMB * 1024 * 1024)
       Destroy(FINAL_STATUS_MEMORY_LIMIT_EXCEEDED);
   }
 }
 
 }  // namespace prerender