Allow synchronous messages to be sent from threads other than the main thread...

chrome/common/render_messages.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.
 
 #ifndef CHROME_COMMON_RENDER_MESSAGES_H_
 #define CHROME_COMMON_RENDER_MESSAGES_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 404 matching lines @@
 
 struct ViewMsg_PrintPages_Params {
   // Parameters to render the page as a printed page. It must always be the same
   // value for all the document.
   ViewMsg_Print_Params params;
 
   // If empty, this means a request to render all the printed pages.
   std::vector<int> pages;
 };
 
-struct ViewMsg_DatabaseOpenFileResponse_Params {
-  IPC::PlatformFileForTransit file_handle;     // DB file handle
-#if defined(OS_POSIX)
-  base::FileDescriptor dir_handle;    // DB directory handle
-#endif
-};
-
 // Parameters to describe a rendered page.
 struct ViewHostMsg_DidPrintPage_Params {
   // A shared memory handle to the EMF data. This data can be quite large so a
   // memory map needs to be used.
   base::SharedMemoryHandle metafile_data_handle;
 
   // Size of the metafile data.
   uint32 data_size;
 
   // Cookie for the document to ensure correctness.
@@ skipping 1589 matching lines @@
        break;
      default:
        action = L"UNKNOWN";
        break;
     }
     LogParam(action, l);
   }
 };
 
 template <>
-struct ParamTraits<ViewMsg_DatabaseOpenFileResponse_Params> {
-  typedef ViewMsg_DatabaseOpenFileResponse_Params param_type;
-  static void Write(Message* m, const param_type& p) {
-    WriteParam(m, p.file_handle);
-#if defined(OS_POSIX)
-    WriteParam(m, p.dir_handle);
-#endif
-  }
-  static bool Read(const Message* m, void** iter, param_type* p) {
-    bool ret = ReadParam(m, iter, &p->file_handle);
-#if defined(OS_POSIX)
-    ret = ret && ReadParam(m, iter, &p->dir_handle);
-#endif
-    return ret;
-  }
-  static void Log(const param_type& p, std::wstring* l) {
-    l->append(L"(");
-    LogParam(p.file_handle, l);
-#if defined(OS_POSIX)
-    l->append(L", ");
-    LogParam(p.dir_handle, l);
-#endif
-    l->append(L")");
-  }
-};
-
-template <>
 struct ParamTraits<appcache::Status> {
   typedef appcache::Status param_type;
   static void Write(Message* m, const param_type& p) {
     m->WriteInt(static_cast<int>(p));
   }
   static bool Read(const Message* m, void** iter, param_type* p) {
     int type;
     if (!m->ReadInt(iter, &type))
       return false;
     *p = static_cast<param_type>(type);
@@ skipping 613 matching lines @@
   }
 };
 
 }  // namespace IPC
 
 
 #define MESSAGES_INTERNAL_FILE "chrome/common/render_messages_internal.h"
 #include "ipc/ipc_message_macros.h"
 
 #endif  // CHROME_COMMON_RENDER_MESSAGES_H_