Move screenshot capture to Java-side.

base/BUILD.gn

Index: base/BUILD.gn
diff --git a/base/BUILD.gn b/base/BUILD.gn
index cf3d3058900bf362101f226b7a18e705f50b1572..5042abb4d67735951247b909299b71118619dbc3 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -2599,6 +2599,7 @@ if (is_android) {
       "//third_party/android_tools:android_support_compat_java",
       "//third_party/hamcrest:hamcrest_core_java",
       "//third_party/junit",
+      "//third_party/ub-uiautomator:ub_uiautomator_java",
     ]
     java_files = [
       "test/android/javatests/src/org/chromium/base/test/BaseActivityInstrumentationTestCase.java",
@@ -2608,6 +2609,7 @@ if (is_android) {
       "test/android/javatests/src/org/chromium/base/test/BaseChromiumAndroidJUnitRunner.java",
       "test/android/javatests/src/org/chromium/base/test/BaseChromiumRunnerCommon.java",
       "test/android/javatests/src/org/chromium/base/test/BaseTestResult.java",
+      "test/android/javatests/src/org/chromium/base/test/ScreenshotOnFailureStatement.java",
       "test/android/javatests/src/org/chromium/base/test/SetUpTestRule.java",
       "test/android/javatests/src/org/chromium/base/test/SetUpStatement.java",
       "test/android/javatests/src/org/chromium/base/test/util/AdvancedMockContext.java",