Revert of [inspector] always include user scripts in the snapshot.

src/inspector/v8-debugger-script.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/inspector/v8-debugger-script.h"
 
 #include "src/inspector/inspected-context.h"
 #include "src/inspector/string-util.h"
 #include "src/inspector/wasm-translation.h"
 
@@ skipping 120 matching lines @@
       if (lineEnds.size() > 1) {
         m_endColumn = source_length - lineEnds[lineEnds.size() - 2] - 1;
       } else {
         m_endColumn = source_length + m_startColumn;
       }
     } else {
       m_endLine = m_startLine;
       m_endColumn = m_startColumn;
     }
 
-    USE(script->ContextId().To(&m_executionContextId));
+    v8::Local<v8::Value> contextData;
+    if (script->ContextData().ToLocal(&contextData) && contextData->IsInt32()) {
+      m_executionContextId =
+          static_cast<int>(contextData.As<v8::Int32>()->Value());
+    }
 
     if (script->Source().ToLocal(&tmp)) {
       m_source = toProtocolString(tmp);
     }
 
     m_isModule = script->IsModule();
 
     m_script.Reset(m_isolate, script);
   }
 
@@ skipping 188 matching lines @@
   if (m_hash.isEmpty()) m_hash = calculateHash(source());
   DCHECK(!m_hash.isEmpty());
   return m_hash;
 }
 
 void V8DebuggerScript::setSourceURL(const String16& sourceURL) {
   m_sourceURL = sourceURL;
 }
 
 }  // namespace v8_inspector