Change how you get to the MessageLoop::Dispatcher.

Previously, you would ask the RootWindow (a singleton) for its dispatcher, which was conveniently the RootWindowHost. Now that we are moving towards many RootWindows, you must ask the new singleton, aura::Env, instead.

This CL also implements a dispatcher for windows. It does not implement the Linux one since that's much larger and I'll do that in a followon CL. I just wanted to change the API. Note there is some transitional ugliness.

http://crbug.com/112131
TEST=existing
Review URL: https://chromiumcodereview.appspot.com/9433072

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@123268 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 1 deletions

diff --git a/ui/aura/root_window_host.h b/ui/aura/root_window_host.h
index a6c7c53..4af42ac 100644
--- a/ui/aura/root_window_host.h
+++ b/ui/aura/root_window_host.h
@@ -23,7 +23,7 @@ class RootWindow;
 // RootWindowHost bridges between a native window and the embedded RootWindow.
 // It provides the accelerated widget and maps events from the native os to
 // aura.
-#if defined(OS_MACOSX)
+#if defined(OS_MACOSX) || defined(OS_WIN)
 class RootWindowHost {
 #else
 class RootWindowHost : public MessageLoop::Dispatcher {
@@ -86,6 +86,11 @@ class RootWindowHost : public MessageLoop::Dispatcher {
   // Posts |native_event| to the platform's event queue.
 #if !defined(OS_MACOSX)
   virtual void PostNativeEvent(const base::NativeEvent& native_event) = 0;
+
+#if !defined(OS_WIN)
+  // See documentation for RootWindow::GetDispatcher().
+  virtual MessageLoop::Dispatcher* GetDispatcher() = 0;
+#endif
 #endif
 };