[TTS] Basic Tap Suppression functionality.

chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchTapState.java

Index: chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchTapState.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchTapState.java b/chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchTapState.java
index ce2495ef0b27a055685aed53b3f14c5b51c781dc..8e839d1f30a9c752331bf41e214ca7e41e4c9a50 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchTapState.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchTapState.java
@@ -6,19 +6,26 @@ package org.chromium.chrome.browser.contextualsearch;
 
 /**
  * Encapsulates the state of a recent Tap gesture; x, y position and if suppressed.
+ * Instances of this class are immutable.
  */
 class ContextualSearchTapState {
-    private final boolean mWasSuppressed;
     private final float mX;
     private final float mY;
+    private final long mTapTimeNanoseconds;
+    private final boolean mWasSuppressed;
 
     /**
      * Constructs a Tap at the given x,y position and indicates if the tap was suppressed or not.
+     * @param x The x coordinate of the current tap.
+     * @param y The y coordinate of the current tap.
+     * @param tapTimeNanoseconds The timestamp when the Tap occurred.
+     * @param wasSuppressed Whether this tap was suppressed for any reason.
      */
-    ContextualSearchTapState(float x, float y, boolean wasSuppressed) {
-        mWasSuppressed = wasSuppressed;
+    ContextualSearchTapState(float x, float y, long tapTimeNanoseconds, boolean wasSuppressed) {
         mX = x;
         mY = y;
+        mTapTimeNanoseconds = tapTimeNanoseconds;
+        mWasSuppressed = wasSuppressed;
     }
 
     /**
@@ -36,6 +43,13 @@ class ContextualSearchTapState {
     }
 
     /**
+     * @return The time of the Tap in nanoseconds.
+     */
+    long tapTimeNanoseconds() {
+        return mTapTimeNanoseconds;
+    }
+
+    /**
      * @return Whether this Tap was suppressed.
      */
     boolean wasSuppressed() {