Disable hardware acceleration for ChromeActivities on low-end devices.

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

Index: chrome/android/javatests/src/org/chromium/chrome/browser/hardware_acceleration/DocumentActivityHWATest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/hardware_acceleration/DocumentActivityHWATest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/hardware_acceleration/DocumentActivityHWATest.java
new file mode 100644
index 0000000000000000000000000000000000000000..97fe905482d3ec868710742bca987037c6b188be
--- /dev/null
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/hardware_acceleration/DocumentActivityHWATest.java
@@ -0,0 +1,39 @@
+// 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.ApplicationStatus;
+import org.chromium.base.test.util.Restriction;
+import org.chromium.chrome.browser.document.DocumentActivity;
+import org.chromium.chrome.browser.document.DocumentModeTest;
+import org.chromium.chrome.test.util.DisableInTabbedMode;
+
+/**
+ * Tests that DocumentActivity is hardware accelerated only high-end devices.
+ */
+@DisableInTabbedMode
+public class DocumentActivityHWATest extends DocumentModeTest {
+
+    @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 DocumentActivity startAndWaitActivity() throws Exception {
+        launchViaViewIntent(false, URL_1, "Page 1");
+        return (DocumentActivity) ApplicationStatus.getLastTrackedFocusedActivity();
+    }
+}