JavaScript to Value bridge.

chrome/common/render_messages_internal.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This header is meant to be included in multiple passes, hence no traditional
 // header guard.
 // See ipc_message_macros.h for explanation of the macros and passes.
 
 #include <map>
 #include <string>
@@ skipping 27 matching lines @@
 #endif
 
 // TODO(mpcomplete): rename ViewMsg and ViewHostMsg to something that makes
 // more sense with our current design.
 
 // IPC_MESSAGE macros choke on extra , in the std::map, when expanding. We need
 // to typedef it to avoid that.
 // Substitution map for l10n messages.
 typedef std::map<std::string, std::string> SubstitutionMap;
 
+class Value;
 class GPUInfo;
 class SerializedScriptValue;
 class SkBitmap;
 struct ThumbnailScore;
 class WebCursor;
 
 namespace gfx {
 class Rect;
 }
 
@@ skipping 2963 matching lines @@
 
   // Client-Side Phishing Detector ---------------------------------------------
   // Inform the browser that the current URL is phishing according to the
   // client-side phishing detector.
   IPC_MESSAGE_ROUTED3(ViewHostMsg_DetectedPhishingSite,
                       GURL /* phishing_url */,
                       double /* phishing_score */,
                       SkBitmap /* thumbnail */)
 
   // Response from ViewMsg_ScriptEvalRequest. The ID is the parameter supplied
-  // to ViewMsg_ScriptEvalRequest. The result is true if the script evaluated
-  // to the boolean result true, false otherwise.
+  // to ViewMsg_ScriptEvalRequest. The result has the value returned by the
+  // script as it's only element, one of Null, Boolean, Integer, Real, or
+  // String.
   IPC_MESSAGE_ROUTED2(ViewHostMsg_ScriptEvalResponse,
                       int  /* id */,
-                      bool  /* result */)
+                      ListValue  /* result */)
 
   // Updates the content restrictions, i.e. to disable print/copy.
   IPC_MESSAGE_ROUTED1(ViewHostMsg_UpdateContentRestrictions,
                       int /* restrictions */)
 
   // Trusted Pepper Filesystem messages ----------------------------------------
 
   // Open the file.
   IPC_SYNC_MESSAGE_CONTROL2_2(ViewHostMsg_PepperOpenFile,
                               FilePath /* path */,
@@ skipping 24 matching lines @@
                               base::PlatformFileInfo, /* info */
                               base::PlatformFileError /* error_code */)
 
   // Get the directory's contents.
   IPC_SYNC_MESSAGE_CONTROL1_2(ViewHostMsg_PepperGetDirContents,
                               FilePath /* path */,
                               PepperDirContents, /* contents */
                               base::PlatformFileError /* error_code */)
 
 IPC_END_MESSAGES(ViewHost)