Remove the ash-enable-touch-view-testing flag

ash/common/wm/maximize_mode/maximize_mode_controller.h

Index: ash/common/wm/maximize_mode/maximize_mode_controller.h
diff --git a/ash/common/wm/maximize_mode/maximize_mode_controller.h b/ash/common/wm/maximize_mode/maximize_mode_controller.h
index 32650fec2cbcb11e479e651beeb0a58112dcf414..6075ab4b7743eb767aa0f61875791cad241b1432 100644
--- a/ash/common/wm/maximize_mode/maximize_mode_controller.h
+++ b/ash/common/wm/maximize_mode/maximize_mode_controller.h
@@ -54,6 +54,10 @@ class ASH_EXPORT MaximizeModeController :
   MaximizeModeController();
   ~MaximizeModeController() override;
 
+  void set_force_can_enter_maximize_mode_for_tests(bool value) {
+    force_can_enter_maximize_mode_for_tests_ = value;
+  }
+
   // True if it is possible to enter maximize mode in the current
   // configuration. If this returns false, it should never be the case that
   // maximize mode becomes enabled.
@@ -153,6 +157,10 @@ class ASH_EXPORT MaximizeModeController :
   // Whether we have ever seen accelerometer data.
   bool have_seen_accelerometer_data_;
 
+  // Whether we force enable entering maximize mode for tests where
+  // accelerometer data is not available.
+  bool force_can_enter_maximize_mode_for_tests_;
+
   // Tracks time spent in (and out of) touchview mode.
   base::Time touchview_usage_interval_start_time_;
   base::TimeDelta total_touchview_time_;