Provide access to the WindowEventDispatcher as a ui::EventProcessor.

ui/views/test/views_test_base.h

Index: ui/views/test/views_test_base.h
diff --git a/ui/views/test/views_test_base.h b/ui/views/test/views_test_base.h
index d7423952aabf958f18f6f8019f81870c138f4746..dd08f4a885a9c11fb257995f8a1d56f8772dbf82 100644
--- a/ui/views/test/views_test_base.h
+++ b/ui/views/test/views_test_base.h
@@ -14,7 +14,12 @@
 #include "ui/base/win/scoped_ole_initializer.h"
 #endif
 
+namespace ui {
+class EventProcessor;
+}
+
 namespace aura {
+class WindowTreeHost;
 namespace test {
 class AuraTestHelper;
 }
@@ -48,6 +53,9 @@ class ViewsTestBase : public testing::Test {
 
   base::MessageLoopForUI* message_loop() { return &message_loop_; }
 
+  ui::EventProcessor* event_processor();
+  aura::WindowTreeHost* host();
+
   // Returns a context view. In aura builds, this will be the
   // RootWindow. Everywhere else, NULL.
   gfx::NativeView GetContext();