android: Use a hard coded BeginFrame deadline

content/browser/renderer_host/input/render_widget_host_latency_tracker.cc

Index: content/browser/renderer_host/input/render_widget_host_latency_tracker.cc
diff --git a/content/browser/renderer_host/input/render_widget_host_latency_tracker.cc b/content/browser/renderer_host/input/render_widget_host_latency_tracker.cc
index 2ca7f74da3878b796e488a34f54fe1c2cf7952dd..c7d1c6dff13af9bffff82e9ce3e34a55198b4956 100644
--- a/content/browser/renderer_host/input/render_widget_host_latency_tracker.cc
+++ b/content/browser/renderer_host/input/render_widget_host_latency_tracker.cc
@@ -19,9 +19,6 @@ namespace content {
 namespace {
 
 const uint32 kMaxInputCoordinates = LatencyInfo::kMaxInputCoordinates;
-const size_t kBrowserCompositeLatencyHistorySize = 60;
-const double kBrowserCompositeLatencyEstimationPercentile = 90.0;
-const double kBrowserCompositeLatencyEstimationSlack = 1.1;
 
 void UpdateLatencyCoordinatesImpl(const blink::WebTouchEvent& touch,
                                   LatencyInfo* latency) {
@@ -291,8 +288,7 @@ RenderWidgetHostLatencyTracker::RenderWidgetHostLatencyTracker()
     : last_event_id_(0),
       latency_component_id_(0),
       device_scale_factor_(1),
-      has_seent_first_gesture_scroll_update_(false),
-      browser_composite_latency_history_(kBrowserCompositeLatencyHistorySize) {
+      has_seent_first_gesture_scroll_update_(false) {
 }
 
 RenderWidgetHostLatencyTracker::~RenderWidgetHostLatencyTracker() {
@@ -444,27 +440,6 @@ void RenderWidgetHostLatencyTracker::OnFrameSwapped(
   ComputeScrollLatencyHistograms(gpu_swap_begin_component,
                                  gpu_swap_end_component, latency_component_id_,
                                  latency);
-
-  LatencyInfo::LatencyComponent browser_swap_component;
-  if (latency.FindLatency(
-          ui::INPUT_EVENT_BROWSER_RECEIVED_RENDERER_SWAP_COMPONENT, 0,
-          &browser_swap_component)) {
-    base::TimeDelta delta =
-        gpu_swap_begin_component.event_time - browser_swap_component.event_time;
-    browser_composite_latency_history_.InsertSample(delta);
-  }
-}
-
-base::TimeDelta
-RenderWidgetHostLatencyTracker::GetEstimatedBrowserCompositeTime() const {
-  // TODO(brianderson): Remove lower bound on estimate once we're sure it won't
-  // cause regressions.
-  return std::max(
-      browser_composite_latency_history_.Percentile(
-          kBrowserCompositeLatencyEstimationPercentile) *
-          kBrowserCompositeLatencyEstimationSlack,
-      base::TimeDelta::FromMicroseconds(
-          (1.0f * base::Time::kMicrosecondsPerSecond) / (3.0f * 60)));
 }
 
 }  // namespace content