This CL create just a window which will be used to show

the mirrored content of the source window. See the next steps
for 

misc:
* added debug+desktop only shortcut 
* rotating square display now update the root window. 

Next steps:
* Mirror cursor
* Modify OutputConfigurator to fallback to software mirror mode.
* Scale the root window size for mirror window so that 
it has the same size as the source root window. 
* Copy texture from soruce window to dest window. 
* Handle device scale factor/cursor scaling. 

BUG=239776
TEST=covered by test

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=201618

Review URL: https://chromiumcodereview.appspot.com/15367003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@201870 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 5 insertions, 0 deletions

diff --git a/ash/shell.h b/ash/shell.h
index 0415be4..b663f78 100644
--- a/ash/shell.h
+++ b/ash/shell.h
@@ -110,6 +110,7 @@ class EventClientImpl;
 class EventRewriterEventFilter;
 class EventTransformationHandler;
 class FocusCycler;
+class MirrorWindowController;
 class MouseCursorEventFilter;
 class OutputConfiguratorAnimation;
 class OverlayEventFilter;
@@ -284,6 +285,9 @@ class ASH_EXPORT Shell
   internal::DisplayManager* display_manager() {
     return display_manager_.get();
   }
+  internal::MirrorWindowController* mirror_window_controller() {
+    return mirror_window_controller_.get();
+  }
   views::corewm::InputMethodEventFilter* input_method_filter() {
     return input_method_filter_.get();
   }
@@ -572,6 +576,7 @@ class ASH_EXPORT Shell
   scoped_ptr<views::corewm::InputMethodEventFilter> input_method_filter_;
 
   scoped_ptr<internal::DisplayManager> display_manager_;
+  scoped_ptr<internal::MirrorWindowController> mirror_window_controller_;
 
 #if defined(OS_CHROMEOS) && defined(USE_X11)
   // Controls video output device state.