Add CommandLineArgumentParameter and use it for WebView tests

android_webview/javatests/src/org/chromium/android_webview/test/AwContentsClientOnScaleChangedTest.java

 // Copyright 2012 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.android_webview.test;
 
 import android.test.suitebuilder.annotation.SmallTest;
 
 import org.chromium.android_webview.AwContents;
 import org.chromium.android_webview.test.util.CommonResources;
+import org.chromium.base.test.util.parameter.ParameterizedTest;
 import org.chromium.content.browser.ContentViewCore;
 
 /**
  * Tests for the WebViewClient.onScaleChanged.
  */
+// Run in single-process mode only. Blocked by rendering support crbug.com/526842.
+@ParameterizedTest.Set

[jbudorick, 2015/10/27 16:14:36]

What exactly are these doing...?

[mnaganov (inactive), 2015/10/27 23:53:30]

Overriding @ParameterizedTest.Set from AwTestBase. See _GetTestsFromProguard in
instrumentation_test_instance.py -- they just take the annotation dictionaries
and collapse them, starting from superclasses and down to the test method.

 public class AwContentsClientOnScaleChangedTest extends AwTestBase {
     private TestAwContentsClient mContentsClient;
     private AwContents mAwContents;
 
     @Override
     protected void setUp() throws Exception {
         super.setUp();
         mContentsClient = new TestAwContentsClient();
         AwTestContainerView testContainerView =
                 createAwTestContainerViewOnMainSync(mContentsClient);
@@ skipping 14 matching lines @@
         int callCount = mContentsClient.getOnScaleChangedHelper().getCallCount();
         core.onSizeChanged(
                 core.getViewportWidthPix() / 2, core.getViewportHeightPix() / 2,
                 core.getViewportWidthPix(), core.getViewportHeightPix());
         // TODO: Investigate on using core.zoomIn();
         mContentsClient.getOnScaleChangedHelper().waitForCallback(callCount);
         assertTrue("Scale ratio:" + mContentsClient.getOnScaleChangedHelper().getLastScaleRatio(),
                 mContentsClient.getOnScaleChangedHelper().getLastScaleRatio() < 1);
     }
 }