Continued tweaking of Cast fling values

BUG=none
TEST=flash device run through flings.

Change-Id: Icb6363c8418df76d868cdf1cefa4268e0eebc980
Reviewed-on: https://chromium-review.googlesource.com/1059696Reviewed-by: Kevin Schoedel <kpschoedel@chromium.org>
Commit-Queue: Alex Sakhartchouk <alexst@chromium.org>
Cr-Commit-Position: refs/heads/master@{#558707}

ui/events/chromecast/scroller.cc

@@ -31,8 +31,7 @@ const float kEpsilon = 1e-5f;
 const float kThresholdForFlingEnd = 0.1f;
 
 // Scale factor applied to incoming fling velocity.
-const float kFlingVelocityAttenuationFactor = 0.5f;
-
+const float kFlingVelocityAttenuationFactor = 1.0f;
 
 bool ApproxEquals(float a, float b) {
   return std::abs(a - b) < kEpsilon;

ui/events/gesture_detection/gesture_configuration_cast.cc

@@ -32,7 +32,7 @@ class GestureConfigurationCast : public GestureConfiguration {
             switches::kCompensateForUnstablePinchZoom)
             ? 5
             : 0);
-    set_velocity_tracker_strategy(VelocityTracker::Strategy::INT1);
+    set_velocity_tracker_strategy(VelocityTracker::Strategy::LSQ2_RESTRICTED);
     set_span_slop(max_touch_move_in_pixels_for_click() * 2);
     set_swipe_enabled(true);
     set_two_finger_tap_enabled(true);