DevTools: Introduce module initializers

Source/devtools/front_end/heap_snapshot_worker/HeapSnapshotWorker.js

 /*
  * Copyright (C) 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 10 matching lines @@
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-WebInspector = {};
-
-importScripts("../common/UIString.js");
-importScripts("../common/utilities.js");
-importScripts("../common/TextUtils.js");
-importScripts("../profiler/HeapSnapshotCommon.js");
-importScripts("AllocationProfile.js");
-importScripts("HeapSnapshot.js");
-importScripts("HeapSnapshotLoader.js");
-importScripts("HeapSnapshotWorkerDispatcher.js");
-importScripts("JSHeapSnapshot.js");
-
 function postMessageWrapper(message)
 {
     postMessage(message);
 }
 
 var dispatcher = new WebInspector.HeapSnapshotWorkerDispatcher(this, postMessageWrapper);
 addEventListener("message", dispatcher.dispatchMessage.bind(dispatcher), false);