Revert r189385 "Remove LifecycleContext" and r189391, r189530, r189456 that block it

Source/bindings/core/v8/V8ScriptRunner.cpp

 /*
  * Copyright (C) 2009 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 371 matching lines @@
 v8::Local<v8::Value> V8ScriptRunner::runCompiledScript(v8::Isolate* isolate, v8::Handle<v8::Script> script, ExecutionContext* context)
 {
     if (script.IsEmpty())
         return v8::Local<v8::Value>();
     TRACE_EVENT_SCOPED_SAMPLING_STATE("v8", "V8Execution");
     TRACE_EVENT1("v8", "v8.run", "fileName", TRACE_STR_COPY(*v8::String::Utf8Value(script->GetUnboundScript()->GetScriptName())));
 
     if (V8RecursionScope::recursionLevel(isolate) >= kMaxRecursionDepth)
         return throwStackOverflowExceptionIfNeeded(isolate);
 
+    RELEASE_ASSERT(!context->isIteratingOverObservers());
+
     // Run the script and keep track of the current recursion depth.
     v8::Local<v8::Value> result;
     {
         if (ScriptForbiddenScope::isScriptForbidden())
             return v8::Local<v8::Value>();
         V8RecursionScope recursionScope(isolate);
         result = script->Run();
     }
 
     if (result.IsEmpty())
@@ skipping 28 matching lines @@
 }
 
 v8::Local<v8::Value> V8ScriptRunner::callFunction(v8::Handle<v8::Function> function, ExecutionContext* context, v8::Handle<v8::Value> receiver, int argc, v8::Handle<v8::Value> args[], v8::Isolate* isolate)
 {
     TRACE_EVENT0("v8", "v8.callFunction");
     TRACE_EVENT_SCOPED_SAMPLING_STATE("v8", "V8Execution");
 
     if (V8RecursionScope::recursionLevel(isolate) >= kMaxRecursionDepth)
         return throwStackOverflowExceptionIfNeeded(isolate);
 
+    RELEASE_ASSERT(!context->isIteratingOverObservers());
+
     if (ScriptForbiddenScope::isScriptForbidden())
         return v8::Local<v8::Value>();
     V8RecursionScope recursionScope(isolate);
     v8::Local<v8::Value> result = function->Call(receiver, argc, args);
     crashIfV8IsDead();
     return result;
 }
 
 v8::Local<v8::Value> V8ScriptRunner::callInternalFunction(v8::Handle<v8::Function> function, v8::Handle<v8::Value> receiver, int argc, v8::Handle<v8::Value> args[], v8::Isolate* isolate)
 {
@@ skipping 54 matching lines @@
 {
     return cacheTag(CacheTagParser, resource);
 }
 
 unsigned V8ScriptRunner::tagForCodeCache(Resource* resource)
 {
     return cacheTag(CacheTagCode, resource);
 }
 
 } // namespace blink