Use TimeDelta::operator/() more, misc. edition.

Bug: 1104532
Change-Id: Icc7244ef277171fbc37f1fc3ca89837a629aa01b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2354628
Auto-Submit: Peter Kasting <pkasting@chromium.org>
Commit-Queue: Mike Pinkerton <pinkerton@chromium.org>
Reviewed-by: Mike Pinkerton <pinkerton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#798124}

chromecast/graphics/accessibility/accessibility_focus_ring_controller.cc

@@ -435,7 +435,7 @@ void AccessibilityFocusRingController::AnimateFocusRings(
       return;
     }
 
-    double fraction = delta.InSecondsF() / transition_time.InSecondsF();
+    double fraction = delta / transition_time;
 
     // Ease-in effect.
     fraction = pow(fraction, 0.3);
@@ -474,12 +474,10 @@ void AccessibilityFocusRingController::ComputeOpacity(
   }
 
   float opacity;
-  if (start_delta < fade_in_time) {
-    opacity = start_delta.InSecondsF() / fade_in_time.InSecondsF();
-  } else {
-    opacity = 1.0 - (change_delta.InSecondsF() /
-                     (fade_in_time + fade_out_time).InSecondsF());
-  }
+  if (start_delta < fade_in_time)
+    opacity = start_delta / fade_in_time;
+  else
+    opacity = 1.0 - (change_delta / (fade_in_time + fade_out_time));
 
   // Layer::SetOpacity will throw an error if we're not within 0...1.
   opacity = base::ClampToRange(opacity, 0.0f, 1.0f);

chromeos/services/device_sync/sync_scheduler_impl_unittest.cc

@@ -37,8 +37,7 @@ bool IsTimeDeltaWithinJitter(const base::TimeDelta& base_time_delta,
 
   base::TimeDelta difference =
       (jittered_time_delta - base_time_delta).magnitude();
-  double percentage_of_base =
-      difference.InMillisecondsF() / base_time_delta.InMillisecondsF();
+  double percentage_of_base = difference / base_time_delta;
   return percentage_of_base < max_jitter_ratio;
 }
 

mojo/public/cpp/bindings/lib/message_quota_checker.cc

@@ -322,9 +322,8 @@ double MessageQuotaChecker::DecayingRateAverage::GetDecayedRateAverage(
   // - |when| is beyond the end of the current sampling interval.
   const int64_t sampling_interval = ToSamplingInterval(when);
   double age_in_sampling_intervals =
-      (when - FromSamplingInterval(events_sampling_interval_))
-          .InMicrosecondsF() /
-      kSamplingInterval.InMicrosecondsF();
+      (when - FromSamplingInterval(events_sampling_interval_)) /
+      kSamplingInterval;
   DCHECK_LE(0.0, age_in_sampling_intervals);
   if (when == FromSamplingInterval(events_sampling_interval_)) {
     DCHECK_EQ(0.0, age_in_sampling_intervals);