Consolidate all touch/gesture related constants in content

content/browser/renderer_host/input/tap_suppression_controller.h

Index: content/browser/renderer_host/input/tap_suppression_controller.h
diff --git a/content/browser/renderer_host/input/tap_suppression_controller.h b/content/browser/renderer_host/input/tap_suppression_controller.h
index ef662f32f7b99bcc03be76b623a98264aef38d07..7f2a4702a1ab1cfc2ce243aee3b0103032737a4e 100644
--- a/content/browser/renderer_host/input/tap_suppression_controller.h
+++ b/content/browser/renderer_host/input/tap_suppression_controller.h
@@ -19,7 +19,22 @@ class TapSuppressionControllerClient;
 // GestureFlingCancel are suppressed.
 class CONTENT_EXPORT TapSuppressionController {
  public:
-  explicit TapSuppressionController(TapSuppressionControllerClient* client);
+  struct CONTENT_EXPORT Config {
+    Config();
+
+    // Defaults to false, in which case no suppression is performed.
+    bool enabled;
+
+    // The maximum time allowed between a GestureFlingCancel and its
+    // corresponding tap down.
+    base::TimeDelta max_cancel_to_down_time;
+
+    // The maximum time allowed between a single tap's down and up events.
+    base::TimeDelta max_tap_gap_time;
+  };
+
+  TapSuppressionController(TapSuppressionControllerClient* client,
+                           const Config& config);
   virtual ~TapSuppressionController();
 
   // Should be called whenever a GestureFlingCancel event is received.
@@ -49,6 +64,7 @@ class CONTENT_EXPORT TapSuppressionController {
   friend class MockTapSuppressionController;
 
   enum State {
+    DISABLED,
     NOTHING,
     GFC_IN_PROGRESS,
     TAP_DOWN_STASHED,
@@ -60,6 +76,10 @@ class CONTENT_EXPORT TapSuppressionController {
   base::OneShotTimer<TapSuppressionController> tap_down_timer_;
   State state_;
 
+  bool enabled_;

[tdresser, 2014/05/01 13:51:56]

enabled_ is unused.

[jdduke (slow), 2014/05/01 16:44:25]

Done.

+  base::TimeDelta max_cancel_to_down_time_;
+  base::TimeDelta max_tap_gap_time_;
+
   // TODO(rjkroege): During debugging, the event times did not prove reliable.
   // Replace the use of base::TimeTicks with an accurate event time when they
   // become available post http://crbug.com/119556.