Disable hardware acceleration for ChromeActivities on low-end devices.

chrome/android/javatests/src/org/chromium/chrome/browser/hardware_acceleration/ChromeTabbedActivityHWATest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/hardware_acceleration/ChromeTabbedActivityHWATest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/hardware_acceleration/ChromeTabbedActivityHWATest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/hardware_acceleration/ChromeTabbedActivityHWATest.java
new file mode 100644
index 0000000000000000000000000000000000000000..ba9029777225a48656904156373d43a0c95ebb67
--- /dev/null
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/hardware_acceleration/ChromeTabbedActivityHWATest.java
@@ -0,0 +1,40 @@
+// Copyright 2015 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.chrome.browser.hardware_acceleration;
+
+import static org.chromium.base.test.util.Restriction.RESTRICTION_TYPE_LOW_END_DEVICE;
+
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.chromium.base.test.util.CommandLineFlags;
+import org.chromium.base.test.util.Restriction;
+import org.chromium.chrome.browser.ChromeSwitches;
+import org.chromium.chrome.browser.ChromeTabbedActivity;
+import org.chromium.chrome.browser.document.DocumentModeTestBase;
+
+/**
+ * Tests that ChromeTabbedActivity is hardware accelerated only high-end devices.
+ */
+@CommandLineFlags.Add(ChromeSwitches.DISABLE_DOCUMENT_MODE)
+public class ChromeTabbedActivityHWATest extends DocumentModeTestBase {
+
+    @SmallTest
+    public void testHardwareAcceleration() throws Exception {
+        Utils.assertHardwareAcceleration(startAndWaitActivity());
+    }
+
+    @Restriction(RESTRICTION_TYPE_LOW_END_DEVICE)
+    @SmallTest
+    public void testNoRenderThread() throws Exception {
+        startAndWaitActivity();
+        Utils.assertNoRenderThread();
+    }
+
+    private ChromeTabbedActivity startAndWaitActivity() throws Exception {
+        ChromeTabbedActivity activity = startTabbedActivity(URL_1);
+        waitForFullLoad(activity, "Page 1");
+        return activity;
+    }
+}