DevTools: CPUProfiler: provide url for scripts that have sourceURL property.

src/api.cc

 // Copyright 2012 the V8 project authors. 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
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 7355 matching lines @@
           security_token.IsEmpty() ? NULL : *Utils::OpenHandle(*security_token),
           uid));
 }
 
 
 void CpuProfiler::StartProfiling(Handle<String> title, bool record_samples) {
   i::Isolate* isolate = i::Isolate::Current();
   IsDeadCheck(isolate, "v8::CpuProfiler::StartProfiling");
   i::CpuProfiler* profiler = isolate->cpu_profiler();
   ASSERT(profiler != NULL);
+  v8::Local<v8::Context> context = v8::Context::New(
+      reinterpret_cast<v8::Isolate*>(isolate));
+  v8::Context::Scope contextScope(context);
   profiler->StartProfiling(*Utils::OpenHandle(*title), record_samples);
 }
 
 
 void CpuProfiler::StartCpuProfiling(Handle<String> title, bool record_samples) {
+  i::Isolate* isolate = i::Isolate::Current();
+  v8::Local<v8::Context> context = v8::Context::New(
+      reinterpret_cast<v8::Isolate*>(isolate));
+  v8::Context::Scope contextScope(context);
   reinterpret_cast<i::CpuProfiler*>(this)->StartProfiling(
       *Utils::OpenHandle(*title), record_samples);
 }
 
 
 const CpuProfile* CpuProfiler::StopProfiling(Handle<String> title,
                                              Handle<Value> security_token) {
   i::Isolate* isolate = i::Isolate::Current();
   IsDeadCheck(isolate, "v8::CpuProfiler::StopProfiling");
   i::CpuProfiler* profiler = isolate->cpu_profiler();
@@ skipping 659 matching lines @@
   Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate());
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   return callback(info);
 }
 
 
 } }  // namespace v8::internal