[Chromoting] TouchInputHandler now listens to events in DesktopView

remoting/android/java/src/org/chromium/chromoting/ScaleEventParameter.java

Index: remoting/android/java/src/org/chromium/chromoting/ScaleEventParameter.java
diff --git a/remoting/android/java/src/org/chromium/chromoting/ScaleEventParameter.java b/remoting/android/java/src/org/chromium/chromoting/ScaleEventParameter.java
new file mode 100644
index 0000000000000000000000000000000000000000..d6e7e755d9131c81ec7edbcf0b8ade40de1802b8
--- /dev/null
+++ b/remoting/android/java/src/org/chromium/chromoting/ScaleEventParameter.java
@@ -0,0 +1,24 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chromoting;
+
+/**
+ * {@link Event} parameter for scale events, represents both {@link scaleFactor} and the focus
+ * ({@link focusX} and {@link focusY}) of the gesture.
+ *
+ * {@link android.graphics.Point} and {@link android.graphics.PointF} are both mutable, so this
+ * class uses two floats instead.
+ */
+public final class ScaleEventParameter {
+    public final float scaleFactor;
+    public final float focusX;
+    public final float focusY;
+
+    public ScaleEventParameter(float scaleFactor, float focusX, float focusY) {
+        this.scaleFactor = scaleFactor;
+        this.focusX = focusX;
+        this.focusY = focusY;
+    }
+}