Fix RenderWidgetHostViewGuest leak.

content/browser/renderer_host/render_widget_host_view_aura.cc

Index: content/browser/renderer_host/render_widget_host_view_aura.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.cc b/content/browser/renderer_host/render_widget_host_view_aura.cc
index 95c44a36eab102bade3fca9e181afd677755d6fc..02694717eae351cbed28c90bed256e7ddfac7cc7 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura.cc
@@ -1744,7 +1744,10 @@ void RenderWidgetHostViewAura::OnWindowDestroying(aura::Window* window) {
 }
 
 void RenderWidgetHostViewAura::OnWindowDestroyed(aura::Window* window) {
-  host_->ViewDestroyed();
+  // Ask the RWH to drop reference to us.

[sky, 2014/10/13 17:04:13]

This comment isn't helpful. It doesn't describe why the view may not be this.

[lazyboy, 2014/10/13 21:54:01]

I've added comment explaining when GetView() != this can happen.

+  if (host_->GetView() == this)
+    host_->ViewDestroyed();
+
   delete this;
 }