Add support for exporting IPC messages from component DLLs.

chrome/common/render_messages.h

 // Copyright (c) 2011 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.
 
 // Multiply-included file, no traditional include guard.
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 // TODO(erg): This list has been temporarily annotated by erg while doing work
 // on which headers to pull out.
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "base/string16.h"
 #include "base/stringprintf.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "chrome/common/common_param_traits.h"
 #include "chrome/common/instant_types.h"
 #include "chrome/common/nacl_types.h"
 #include "chrome/common/search_provider.h"
 #include "chrome/common/thumbnail_score.h"
 #include "chrome/common/translate_errors.h"
 #include "content/common/common_param_traits.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_platform_file.h"
+#include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCache.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebConsoleMessage.h"
 #include "ui/gfx/rect.h"
 
 // Singly-included section for enums and custom IPC traits.
 #ifndef CHROME_COMMON_RENDER_MESSAGES_H_
 #define CHROME_COMMON_RENDER_MESSAGES_H_
 
 class SkBitmap;
 
@@ skipping 484 matching lines @@
                     std::vector<std::string> /* suggestions */,
                     InstantCompleteBehavior)
 
 IPC_MESSAGE_ROUTED2(ChromeViewHostMsg_InstantSupportDetermined,
                     int32 /* page_id */,
                     bool  /* result */)
 
 // The currently displayed PDF has an unsupported feature.
 IPC_MESSAGE_ROUTED0(ChromeViewHostMsg_PDFHasUnsupportedFeature)