Revert "Add AppWindow.setVisibleOnAllWorkspaces." (https://codereview.chromium.org/469993003)

chrome/browser/extensions/api/app_current_window_internal/app_current_window_internal_api.cc

Index: chrome/browser/extensions/api/app_current_window_internal/app_current_window_internal_api.cc
diff --git a/chrome/browser/extensions/api/app_current_window_internal/app_current_window_internal_api.cc b/chrome/browser/extensions/api/app_current_window_internal/app_current_window_internal_api.cc
index 18554f7cba492090c8b714d9b1eeedcdecc52d5c..28ffe4e39261170bc1f1d533c1412d5c91451e1b 100644
--- a/chrome/browser/extensions/api/app_current_window_internal/app_current_window_internal_api.cc
+++ b/chrome/browser/extensions/api/app_current_window_internal/app_current_window_internal_api.cc
@@ -27,8 +27,6 @@ namespace SetIcon = app_current_window_internal::SetIcon;
 namespace SetBadgeIcon = app_current_window_internal::SetBadgeIcon;
 namespace SetShape = app_current_window_internal::SetShape;
 namespace SetAlwaysOnTop = app_current_window_internal::SetAlwaysOnTop;
-namespace SetVisibleOnAllWorkspaces =
-    app_current_window_internal::SetVisibleOnAllWorkspaces;
 
 using app_current_window_internal::Bounds;
 using app_current_window_internal::Region;
@@ -399,18 +397,4 @@ bool AppCurrentWindowInternalSetAlwaysOnTopFunction::RunWithWindow(
   return true;
 }
 
-bool AppCurrentWindowInternalSetVisibleOnAllWorkspacesFunction::RunWithWindow(
-    AppWindow* window) {
-  if (GetCurrentChannel() > chrome::VersionInfo::CHANNEL_DEV) {
-    error_ = kDevChannelOnly;
-    return false;
-  }
-
-  scoped_ptr<SetVisibleOnAllWorkspaces::Params> params(
-      SetVisibleOnAllWorkspaces::Params::Create(*args_));
-  CHECK(params.get());
-  window->GetBaseWindow()->SetVisibleOnAllWorkspaces(params->always_visible);
-  return true;
-}
-
 }  // namespace extensions