Fix a regression where extension APIs would sometimes not be available on the

content/browser/renderer_host/browser_render_process_host.cc

Index: content/browser/renderer_host/browser_render_process_host.cc
diff --git a/content/browser/renderer_host/browser_render_process_host.cc b/content/browser/renderer_host/browser_render_process_host.cc
index a5318723c8634578fc69a4822280e82567ba3d2e..6d8b2ac6c0effe37c8df62e6137889e2c9e82c0a 100644
--- a/content/browser/renderer_host/browser_render_process_host.cc
+++ b/content/browser/renderer_host/browser_render_process_host.cc
@@ -244,6 +244,10 @@ BrowserRenderProcessHost::~BrowserRenderProcessHost() {
   ClearTransportDIBCache();
 }
 
+void BrowserRenderProcessHost::EnableSendQueue() {
+  is_initialized_ = false;
+}
+
 bool BrowserRenderProcessHost::Init(bool is_accessibility_enabled) {
   // calling Init() more than once does nothing, this makes it more convenient
   // for the view host which may not be sure in some cases