Adding a unique runtime Id to Profile objects, that can be used as the key...

chrome/browser/profile.cc

Index: chrome/browser/profile.cc
===================================================================
--- chrome/browser/profile.cc	(revision 28102)
+++ chrome/browser/profile.cc	(working copy)
@@ -147,6 +147,9 @@
 }
 
 // static
+const ProfileId Profile::InvalidProfileId = static_cast<ProfileId>(0);
+
+// static
 void Profile::RegisterUserPrefs(PrefService* prefs) {
   prefs->RegisterBooleanPref(prefs::kSearchSuggestEnabled, true);
   prefs->RegisterBooleanPref(prefs::kSessionExitedCleanly, true);
@@ -227,6 +230,10 @@
     CleanupAppCacheService(appcache_service_);
   }
 
+  virtual ProfileId GetRuntimeId() {
+    return reinterpret_cast<ProfileId>(this);
+  }
+
   virtual FilePath GetPath() { return profile_->GetPath(); }
 
   virtual bool IsOffTheRecord() {
@@ -798,6 +805,10 @@
   MarkAsCleanShutdown();
 }
 
+ProfileId ProfileImpl::GetRuntimeId() {
+  return reinterpret_cast<ProfileId>(this);
+}
+
 FilePath ProfileImpl::GetPath() {
   return path_;
 }