POSIX: gfx::NativeViewId and CrossProcessEvent

Create a couple new typedefs for porting work. Firstly,
gfx::NativeViewId is a handle to a platform specific widget in the
renderer process. For Windows, this is just a HWND as before. However,
in other platforms the ids used in the renderer process will be
something else.

CrossProcessEvent is the type of a HANDLE to a Windows event object
which is used across processes. Since we aren't going to support these
sorts of events on non-Windows platforms, this will have to go away at
some point. For now, however, this lets us build code without too many
ifdefs all over the place.

Review URL: http://codereview.chromium.org/18768


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@8756 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 24 insertions, 0 deletions

diff --git a/chrome/common/render_messages.h b/chrome/common/render_messages.h
index b0338b7..83dddb1 100644
--- a/chrome/common/render_messages.h
+++ b/chrome/common/render_messages.h
@@ -15,6 +15,7 @@
 #include "chrome/common/filter_policy.h"
 #include "chrome/common/ipc_message.h"
 #include "chrome/common/ipc_message_utils.h"
+#include "chrome/common/modal_dialog_event.h"
 #include "chrome/common/page_transition_types.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/upload_data.h"
@@ -1723,6 +1724,29 @@ struct ParamTraits<webkit_glue::ScreenInfo> {
   }
 };
 
+template<>
+struct ParamTraits<ModalDialogEvent> {
+  typedef ModalDialogEvent param_type;
+#if defined(OS_WIN)
+  static void Write(Message* m, const param_type& p) {
+    WriteParam(m, p.event);
+  }
+  static bool Read(const Message* m, void** iter, param_type* p) {
+    return ReadParam(m, iter, &p->event);
+  }
+#else
+  static void Write(Message* m, const param_type& p) {
+  }
+  static bool Read(const Message* m, void** iter, param_type* p) {
+    return true;
+  }
+#endif
+
+  static void Log(const param_type& p, std::wstring* l) {
+    l->append(L"<ModalDialogEvent>");
+  }
+};
+
 }  // namespace IPC
 
 #endif  // CHROME_COMMON_RENDER_MESSAGES_H_