Initialize debugger together with isolate.

third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp

 /*
  * Copyright (C) 2008, 2009, 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 92 matching lines @@
 {
     if (!isContextInitialized())
         return;
 
     v8::HandleScope handleScope(m_isolate);
     v8::Local<v8::Context> context = m_scriptState->context();
     if (m_frame->isLocalFrame()) {
         LocalFrame* frame = toLocalFrame(m_frame);
         // The embedder could run arbitrary code in response to the willReleaseScriptContext callback, so all disposing should happen after it returns.
         frame->loader().client()->willReleaseScriptContext(context, m_world->worldId());
-        MainThreadDebugger::contextWillBeDestroyed(m_scriptState.get());
+        MainThreadDebugger::instance()->contextWillBeDestroyed(m_scriptState.get());
     }
 
     m_document.clear();
 
     if (behavior == DetachGlobal)
         m_scriptState->detachGlobalObject();
 
     m_scriptState->disposePerContextData();
 
     // It's likely that disposing the context has created a lot of
@@ skipping 138 matching lines @@
         ContentSecurityPolicy* csp = m_frame->securityContext()->contentSecurityPolicy();
         context->AllowCodeGenerationFromStrings(csp->allowEval(0, ContentSecurityPolicy::SuppressReport));
         context->SetErrorMessageForCodeGenerationFromStrings(v8String(m_isolate, csp->evalDisabledErrorMessage()));
     } else {
         updateActivityLogger();
         origin = m_world->isolatedWorldSecurityOrigin();
         setSecurityToken(origin);
     }
     if (m_frame->isLocalFrame()) {
         LocalFrame* frame = toLocalFrame(m_frame);
-        MainThreadDebugger::contextCreated(m_scriptState.get(), frame, origin);
+        MainThreadDebugger::instance()->contextCreated(m_scriptState.get(), frame, origin);
         frame->loader().client()->didCreateScriptContext(context, m_world->extensionGroup(), m_world->worldId());
     }
     return true;
 }
 
 namespace {
 
 void configureInnerGlobalObjectTemplate(v8::Local<v8::ObjectTemplate> templ, v8::Isolate* isolate)
 {
     // Install a security handler with V8.
@@ skipping 296 matching lines @@
 }
 
 void WindowProxy::updateSecurityOrigin(SecurityOrigin* origin)
 {
     if (!isContextInitialized())
         return;
     setSecurityToken(origin);
 }
 
 } // namespace blink