[AW][DevUI] batch devui tests

Batch all espresso devui tests in PER_CLASS batches.

Bug: 1120847
Test: run_webview_instrumentation_test_apk -A Batch=android_webview_devui
Change-Id: I59c117d0f26e75dfe4200954ce2153db81d842e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2438536
Commit-Queue: Hazem Ashmawy <hazems@chromium.org>
Reviewed-by: Nate Fischer <ntfschr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#812573}

android_webview/javatests/src/org/chromium/android_webview/test/devui/CrashesListFragmentTest.java

@@ -76,6 +76,7 @@ import org.chromium.android_webview.devui.util.WebViewPackageHelper;
 import org.chromium.android_webview.test.AwJUnit4ClassRunner;
 import org.chromium.base.Callback;
 import org.chromium.base.FileUtils;
+import org.chromium.base.test.util.Batch;
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.base.test.util.Feature;
 import org.chromium.components.minidump_uploader.CrashFileManager;
@@ -95,6 +96,7 @@ import java.util.concurrent.TimeUnit;
  */
 @LargeTest
 @RunWith(AwJUnit4ClassRunner.class)
+@Batch(Batch.PER_CLASS)
 public class CrashesListFragmentTest {
     private static final String FAKE_APP_PACKAGE_NAME = "com.test.some_package";
     private static final String CRASH_REPORT_BUTTON_TEXT = "File bug report";

android_webview/javatests/src/org/chromium/android_webview/test/devui/DeveloperUiTest.java

@@ -45,6 +45,7 @@ import org.junit.runner.RunWith;
 import org.chromium.android_webview.devui.MainActivity;
 import org.chromium.android_webview.devui.R;
 import org.chromium.android_webview.test.AwJUnit4ClassRunner;
+import org.chromium.base.test.util.Batch;
 import org.chromium.base.test.util.Feature;
 
 /**
@@ -52,6 +53,7 @@ import org.chromium.base.test.util.Feature;
  * have their own test class.
  */
 @RunWith(AwJUnit4ClassRunner.class)
+@Batch(Batch.PER_CLASS)
 public class DeveloperUiTest {
     // The package name of the test shell. This is acting both as the client app and the WebView
     // provider.

android_webview/javatests/src/org/chromium/android_webview/test/devui/FlagsFragmentTest.java

@@ -45,6 +45,7 @@ import org.chromium.android_webview.devui.FlagsFragment;
 import org.chromium.android_webview.devui.MainActivity;
 import org.chromium.android_webview.devui.R;
 import org.chromium.android_webview.test.AwJUnit4ClassRunner;
+import org.chromium.base.test.util.Batch;
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.base.test.util.Feature;
 import org.chromium.content_public.browser.test.util.TestThreadUtils;
@@ -53,6 +54,7 @@ import org.chromium.content_public.browser.test.util.TestThreadUtils;
  * UI tests for {@link FlagsFragment}.
  */
 @RunWith(AwJUnit4ClassRunner.class)
+@Batch(Batch.PER_CLASS)
 public class FlagsFragmentTest {
     @Rule
     public ActivityTestRule mRule =

android_webview/javatests/src/org/chromium/android_webview/test/devui/HomeFragmentTest.java

@@ -49,6 +49,7 @@ import org.chromium.android_webview.devui.R;
 import org.chromium.android_webview.devui.WebViewPackageError;
 import org.chromium.android_webview.devui.util.WebViewPackageHelper;
 import org.chromium.android_webview.test.AwJUnit4ClassRunner;
+import org.chromium.base.test.util.Batch;
 import org.chromium.base.test.util.Feature;
 
 import java.util.Locale;
@@ -57,6 +58,7 @@ import java.util.Locale;
  * UI tests for the developer UI's HomeFragment.
  */
 @RunWith(AwJUnit4ClassRunner.class)
+@Batch(Batch.PER_CLASS)
 public class HomeFragmentTest {
     public static final PackageInfo FAKE_WEBVIEW_PACKAGE = new PackageInfo();
     static {