Test that debug stub works with browser.

chrome/browser/nacl_host/nacl_browser.h

Index: chrome/browser/nacl_host/nacl_browser.h
===================================================================
--- chrome/browser/nacl_host/nacl_browser.h	(revision 163266)
+++ chrome/browser/nacl_host/nacl_browser.h	(working copy)
@@ -52,6 +52,15 @@
   // Returns whether NaCl application with this manifest URL should be debugged.
   bool URLMatchesDebugPatterns(GURL manifest_url);
 
+  // Send message that new debug stub TCP port is allocated.
+  void DebugStubNewPortAllocated(int port);
+
+  bool HasDebugStubPortListener();
+
+  void SetDebugStubPortListener(base::Callback<void(int)> listener);
+
+  void ClearDebugStubPortListener();
+
   bool ValidationCacheIsEnabled() const {
     return validation_cache_is_enabled_;
   }
@@ -111,6 +120,7 @@
   bool validation_cache_is_enabled_;
   bool validation_cache_is_modified_;
   NaClResourceState validation_cache_state_;
+  base::Callback<void(int)> debug_stub_port_listener_;
 
   bool ok_;