Consolidate all touch/gesture related constants in content

content/browser/renderer_host/input/tap_suppression_controller.cc

Index: content/browser/renderer_host/input/tap_suppression_controller.cc
diff --git a/content/browser/renderer_host/input/tap_suppression_controller.cc b/content/browser/renderer_host/input/tap_suppression_controller.cc
index 641af6ad108a04b4e240ec07aa19f94439670b08..71c9f38be3680006a253f2c85858190b2b98f8a0 100644
--- a/content/browser/renderer_host/input/tap_suppression_controller.cc
+++ b/content/browser/renderer_host/input/tap_suppression_controller.cc
@@ -10,16 +10,25 @@
 
 namespace content {
 
+TapSuppressionController::Config::Config()
+    : enabled(false),
+      max_cancel_to_down_time(base::TimeDelta::FromMilliseconds(180)),
+      max_tap_gap_time(base::TimeDelta::FromMilliseconds(500)) {}
+
 TapSuppressionController::TapSuppressionController(
-    TapSuppressionControllerClient* client)
+    TapSuppressionControllerClient* client,
+    const Config& config)
     : client_(client),
-      state_(TapSuppressionController::NOTHING) {
-}
+      state_(config.enabled ? NOTHING : DISABLED),
+      max_cancel_to_down_time_(config.max_cancel_to_down_time),
+      max_tap_gap_time_(config.max_tap_gap_time) {}
 
 TapSuppressionController::~TapSuppressionController() {}
 
 void TapSuppressionController::GestureFlingCancel() {
   switch (state_) {
+    case DISABLED:
+      break;
     case NOTHING:
     case GFC_IN_PROGRESS:
     case LAST_CANCEL_STOPPED_FLING:
@@ -33,6 +42,7 @@ void TapSuppressionController::GestureFlingCancel() {
 void TapSuppressionController::GestureFlingCancelAck(bool processed) {
   base::TimeTicks event_time = Now();
   switch (state_) {
+    case DISABLED:
     case NOTHING:
       break;
     case GFC_IN_PROGRESS:
@@ -57,23 +67,21 @@ void TapSuppressionController::GestureFlingCancelAck(bool processed) {
 bool TapSuppressionController::ShouldDeferTapDown() {
   base::TimeTicks event_time = Now();
   switch (state_) {
+    case DISABLED:
     case NOTHING:
       return false;
     case GFC_IN_PROGRESS:
       state_ = TAP_DOWN_STASHED;
-      StartTapDownTimer(
-          base::TimeDelta::FromMilliseconds(client_->MaxTapGapTimeInMs()));
+      StartTapDownTimer(max_tap_gap_time_);
       return true;
     case TAP_DOWN_STASHED:
       NOTREACHED() << "TapDown on TAP_DOWN_STASHED state";
       state_ = NOTHING;
       return false;
     case LAST_CANCEL_STOPPED_FLING:
-      if ((event_time - fling_cancel_time_).InMilliseconds()
-          < client_->MaxCancelToDownTimeInMs()) {
+      if ((event_time - fling_cancel_time_) < max_cancel_to_down_time_) {
         state_ = TAP_DOWN_STASHED;
-        StartTapDownTimer(
-            base::TimeDelta::FromMilliseconds(client_->MaxTapGapTimeInMs()));
+        StartTapDownTimer(max_tap_gap_time_);
         return true;
       } else {
         state_ = NOTHING;
@@ -86,6 +94,7 @@ bool TapSuppressionController::ShouldDeferTapDown() {
 
 bool TapSuppressionController::ShouldSuppressTapEnd() {
   switch (state_) {
+    case DISABLED:
     case NOTHING:
     case GFC_IN_PROGRESS:
       return false;
@@ -115,7 +124,10 @@ void TapSuppressionController::StopTapDownTimer() {
 
 void TapSuppressionController::TapDownTimerExpired() {
   switch (state_) {
+    case DISABLED:
     case NOTHING:
+      NOTREACHED() << "Timer fired on invalid state.";
+      break;
     case GFC_IN_PROGRESS:
     case LAST_CANCEL_STOPPED_FLING:
       NOTREACHED() << "Timer fired on invalid state.";