Allow virtual keyboard window to access audio stream and speech api for voice input

ui/keyboard/keyboard_controller_unittest.cc

Index: ui/keyboard/keyboard_controller_unittest.cc
diff --git a/ui/keyboard/keyboard_controller_unittest.cc b/ui/keyboard/keyboard_controller_unittest.cc
index 73ac2f8243aaaa8e192878cee7f9f0016484ce1f..0f502c4ca1329fb17c5a5e183a3068a903e44b6c 100644
--- a/ui/keyboard/keyboard_controller_unittest.cc
+++ b/ui/keyboard/keyboard_controller_unittest.cc
@@ -70,6 +70,9 @@ class TestKeyboardControllerProxy : public KeyboardControllerProxy {
   virtual ui::InputMethod* GetInputMethod() OVERRIDE {
     return input_method_.get();
   }
+  virtual void RequestAudioInput(content::WebContents* web_contents,
+      const content::MediaStreamRequest& request,
+      const content::MediaResponseCallback& callback) OVERRIDE { return; }
 
  private:
   scoped_ptr<aura::Window> window_;