Blow away BackgroundContents when RenderView goes away.

chrome/browser/tab_contents/background_contents.cc

Index: chrome/browser/tab_contents/background_contents.cc
diff --git a/chrome/browser/tab_contents/background_contents.cc b/chrome/browser/tab_contents/background_contents.cc
index 1904d3819b24352387248838c0652ed967fedb1b..b4eed25d610e1764d0737a42bf149614663a0d54 100644
--- a/chrome/browser/tab_contents/background_contents.cc
+++ b/chrome/browser/tab_contents/background_contents.cc
@@ -175,6 +175,16 @@ void BackgroundContents::Close(RenderViewHost* render_view_host) {
   delete this;
 }
 
+void BackgroundContents::RenderViewGone(RenderViewHost* rvh,
+                                        base::TerminationStatus status,
+                                        int error_code) {
+  // Our RenderView went away, so we should go away also, so killing the process
+  // via the TaskManager doesn't permanently leave a BackgroundContents hanging
+  // around the system, blocking future instances from being created
+  // (http://crbug.com/65189).
+  delete this;
+}
+
 RendererPreferences BackgroundContents::GetRendererPrefs(
     Profile* profile) const {
   RendererPreferences preferences;