Remove deprecated gesture configuration parameters.

BUG=379912

Review URL: https://codereview.chromium.org/422493003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@285600 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/gesture_prefs_observer_factory_aura.cc

@@ -27,48 +27,6 @@ using ui::GestureConfiguration;
 
 namespace {
 
-// TODO(tdresser): Remove these deprecated prefs in M38. See crbug.com/379912.
-
-const char kFlingVelocityCap[] = "gesture.fling_velocity_cap";
-const char kLongPressTimeInSeconds[] =
-    "gesture.long_press_time_in_seconds";
-const char kMaxDistanceBetweenTapsForDoubleTap[] =
-    "gesture.max_distance_between_taps_for_double_tap";
-const char kMaxDistanceForTwoFingerTapInPixels[] =
-    "gesture.max_distance_for_two_finger_tap_in_pixels";
-const char kMaxSecondsBetweenDoubleClick[] =
-    "gesture.max_seconds_between_double_click";
-const char kMaxSwipeDeviationRatio[] =
-    "gesture.max_swipe_deviation_ratio";
-const char kMaxTouchDownDurationInSecondsForClick[] =
-    "gesture.max_touch_down_duration_in_seconds_for_click";
-const char kMaxTouchMoveInPixelsForClick[] =
-    "gesture.max_touch_move_in_pixels_for_click";
-const char kMinDistanceForPinchScrollInPixels[] =
-    "gesture.min_distance_for_pinch_scroll_in_pixels";
-const char kMinFlickSpeedSquared[] =
-    "gesture.min_flick_speed_squared";
-const char kMinPinchUpdateDistanceInPixels[] =
-    "gesture.min_pinch_update_distance_in_pixels";
-const char kMinRailBreakVelocity[] =
-    "gesture.min_rail_break_velocity";
-const char kMinScrollDeltaSquared[] =
-    "gesture.min_scroll_delta_squared";
-const char kMinSwipeSpeed[] =
-    "gesture.min_swipe_speed";
-const char kMinTouchDownDurationInSecondsForClick[] =
-    "gesture.min_touch_down_duration_in_seconds_for_click";
-const char kPointsBufferedForVelocity[] =
-    "gesture.points_buffered_for_velocity";
-const char kRailBreakProportion[] =
-    "gesture.rail_break_proportion";
-const char kRailStartProportion[] =
-    "gesture.rail_start_proportion";
-const char kScrollPredictionSeconds[] =
-    "gesture.scroll_prediction_seconds";
-const char kShowPressDelayInMS[] =
-    "gesture.show_press_delay_in_ms";
-
 struct OverscrollPref {
   const char* pref_name;
   content::OverscrollConfig config;
@@ -156,37 +114,8 @@ const char* kFlingTouchscreenPrefs[] = {
   prefs::kFlingCurveTouchscreenGamma,
 };
 
-const char* kPrefsToRemove[] = {
-  kFlingVelocityCap,
-  kLongPressTimeInSeconds,
-  kMaxDistanceBetweenTapsForDoubleTap,
-  kMaxDistanceForTwoFingerTapInPixels,
-  kMaxSecondsBetweenDoubleClick,
-  kMaxSwipeDeviationRatio,
-  kMaxTouchDownDurationInSecondsForClick,
-  kMaxTouchMoveInPixelsForClick,
-  kMinDistanceForPinchScrollInPixels,
-  kMinFlickSpeedSquared,
-  kMinPinchUpdateDistanceInPixels,
-  kMinRailBreakVelocity,
-  kMinScrollDeltaSquared,
-  kMinSwipeSpeed,
-  kMinTouchDownDurationInSecondsForClick,
-  kPointsBufferedForVelocity,
-  kRailBreakProportion,
-  kRailStartProportion,
-  kScrollPredictionSeconds,
-  kShowPressDelayInMS,
-};
-
 GesturePrefsObserver::GesturePrefsObserver(PrefService* prefs)
     : prefs_(prefs) {
-  // Clear for migration.
-  for (size_t i = 0; i < arraysize(kPrefsToRemove); ++i) {
-    if (prefs->FindPreference(kPrefsToRemove[i]))
-      prefs->ClearPref(kPrefsToRemove[i]);
-  }
-
   registrar_.Init(prefs);
   registrar_.RemoveAll();
   base::Closure callback = base::Bind(&GesturePrefsObserver::Update,