One of the (very few) warnings when building lib_android_webview_unittests__library.so:

[16175/23223] ACTION //base:base_java_test_support__compile_java__javac(//build/toolchain/android:android_clang_arm)
../../base/test/android/javatests/src/org/chromium/base/test/BaseActivityInstrumentationTestCase.java:8: warning: [deprecation] ActivityInstrumentationTestCase2 in android.test has been deprecated
import android.test.ActivityInstrumentationTestCase2;
                   ^
../../base/test/android/javatests/src/org/chromium/base/test/BaseInstrumentationTestRunner.java:11: warning: [deprecation] AndroidTestRunner in android.test has been deprecated
import android.test.AndroidTestRunner;
                   ^
../../base/test/android/javatests/src/org/chromium/base/test/BaseInstrumentationTestRunner.java:12: warning: [deprecation] InstrumentationTestRunner in android.test has been deprecated
import android.test.InstrumentationTestRunner;
                   ^
../../base/test/android/javatests/src/org/chromium/base/test/BaseActivityInstrumentationTestCase.java:24: warning: [deprecation] ActivityInstrumentationTestCase2 in android.test has been deprecated
        extends ActivityInstrumentationTestCase2<T> implements Parameterizable {
                ^
../../base/test/android/javatests/src/org/chromium/base/test/BaseInstrumentationTestRunner.java:29: warning: [deprecation] InstrumentationTestRunner in android.test has been deprecated
public class BaseInstrumentationTestRunner extends InstrumentationTestRunner {
                                                   ^
../../base/test/android/javatests/src/org/chromium/base/test/BaseInstrumentationTestRunner.java:31: warning: [deprecation] AndroidTestRunner in android.test has been deprecated
    protected AndroidTestRunner getAndroidTestRunner() {
              ^
../../base/test/android/javatests/src/org/chromium/base/test/BaseInstrumentationTestRunner.java:32: warning: [deprecation] AndroidTestRunner in android.test has been deprecated
        AndroidTestRunner runner = new AndroidTestRunner() {
        ^
../../base/test/android/javatests/src/org/chromium/base/test/BaseInstrumentationTestRunner.java:32: warning: [deprecation] AndroidTestRunner in android.test has been deprecated
        AndroidTestRunner runner = new AndroidTestRunner() {
                                       ^
8 warnings
[23042/23223] ACTION //content/public/test/android:content_java_test_support__compile_java__javac(//build/toolchain/android:android_clang_arm)
../../content/public/test/android/javatests/src/org/chromium/content/browser/test/NativeLibraryTestBase.java:7: warning: [deprecation] InstrumentationTestCase in android.test has been deprecated
import android.test.InstrumentationTestCase;
                   ^
../../content/public/test/android/javatests/src/org/chromium/content/browser/test/util/DOMUtils.java:10: warning: [deprecation] ActivityInstrumentationTestCase2 in android.test has been deprecated
import android.test.ActivityInstrumentationTestCase2;
                   ^
../../content/public/test/android/javatests/src/org/chromium/content/browser/test/util/TouchCommon.java:9: warning: [deprecation] TouchUtils in android.test has been deprecated
import android.test.TouchUtils;
                   ^
../../content/public/test/android/javatests/src/org/chromium/content/browser/test/NativeLibraryTestBase.java:20: warning: [deprecation] InstrumentationTestCase in android.test has been deprecated
public class NativeLibraryTestBase extends InstrumentationTestCase {
                                           ^
../../content/public/test/android/javatests/src/org/chromium/content/browser/test/util/DOMUtils.java:232: warning: [deprecation] ActivityInstrumentationTestCase2 in android.test has been deprecated
    public static boolean clickNode(ActivityInstrumentationTestCase2 activityTestCase,
                                    ^
../../content/public/test/android/javatests/src/org/chromium/content/browser/test/util/DOMUtils.java:247: warning: [deprecation] ActivityInstrumentationTestCase2 in android.test has been deprecated
    public static void clickNodeByJs(ActivityInstrumentationTestCase2 activityTestCase,
                                     ^
../../content/public/test/android/javatests/src/org/chromium/content/browser/test/util/DOMUtils.java:273: warning: [deprecation] ActivityInstrumentationTestCase2 in android.test has been deprecated
    public static void longPressNode(ActivityInstrumentationTestCase2 activityTestCase,
                                     ^
../../content/public/test/android/javatests/src/org/chromium/content/browser/test/util/DOMUtils.java:289: warning: [deprecation] ActivityInstrumentationTestCase2 in android.test has been deprecated
    public static void longPressNodeByJs(ActivityInstrumentationTestCase2 activityTestCase,
                                         ^
../../content/public/test/android/javatests/src/org/chromium/content/browser/test/util/TestTouchUtils.java:18: warning: [deprecation] TouchUtils in android.test has been deprecated
public class TestTouchUtils extends android.test.TouchUtils {
                                                ^
9 warnings


(The two sets of warnings look very similar, so filing just one bug

We try to have a silent build.

jbudorick, do you think you have time to look at this? If not, do you know who'd be a good assignee?