Implement ScreenOrientationProvider for Chrome Android.

content/public/test/android/javatests/src/org/chromium/content/browser/test/util/OrientationChangeObserverCriteria.java

Index: content/public/test/android/javatests/src/org/chromium/content/browser/test/util/OrientationChangeObserverCriteria.java
diff --git a/content/public/test/android/javatests/src/org/chromium/content/browser/test/util/OrientationChangeObserverCriteria.java b/content/public/test/android/javatests/src/org/chromium/content/browser/test/util/OrientationChangeObserverCriteria.java
new file mode 100644
index 0000000000000000000000000000000000000000..5132c80564a8799962cf86f6520aac1aac42ae35
--- /dev/null
+++ b/content/public/test/android/javatests/src/org/chromium/content/browser/test/util/OrientationChangeObserverCriteria.java
@@ -0,0 +1,43 @@
+// Copyright 2014 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.content.browser.test.util;
+
+/**
+ * Criteria used to know when an orientation change happens.
+ */
+public class OrientationChangeObserverCriteria implements Criteria {
+
+    private final MockOrientationObserver mObserver;
+    private final int mTarget;
+    private final boolean mCheckTarget;
+
+    // Constructor to be used when the criteria is that there is an
+    // orientation change but the new orientation value does not matter.
+    public OrientationChangeObserverCriteria(MockOrientationObserver observer) {
+        mObserver = observer;
+        mObserver.mHasChanged = false;
+
+        mCheckTarget = false;
+        mTarget = -1;
+    }
+
+    // Constructor to be used when the criteria cares about a change
+    // happening to a specific orientation value.
+    public OrientationChangeObserverCriteria(MockOrientationObserver observer, int target) {
+        mObserver = observer;
+        mObserver.mHasChanged = false;
+
+        mTarget = target;
+        mCheckTarget = true;
+    }
+
+    @Override
+    public boolean isSatisfied() {
+        if (!mObserver.mHasChanged)
+            return false;
+
+        return !mCheckTarget || mObserver.mOrientation == mTarget;
+    }
+}