Add TestRules for content shell test and refactor test bases

content/public/android/javatests/src/org/chromium/content/browser/JavaBridgeActivityTestRule.java

Index: content/public/android/javatests/src/org/chromium/content/browser/JavaBridgeActivityTestRule.java
diff --git a/content/public/android/javatests/src/org/chromium/content/browser/JavaBridgeActivityTestRule.java b/content/public/android/javatests/src/org/chromium/content/browser/JavaBridgeActivityTestRule.java
new file mode 100644
index 0000000000000000000000000000000000000000..ba3d5cfa664603720c3ce49d691b71863f9e5157
--- /dev/null
+++ b/content/public/android/javatests/src/org/chromium/content/browser/JavaBridgeActivityTestRule.java
@@ -0,0 +1,73 @@
+// Copyright 2017 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.content.browser;
+
+import org.junit.runner.Description;
+import org.junit.runners.model.Statement;
+
+import org.chromium.content.browser.test.util.TestCallbackHelperContainer;
+import org.chromium.content_shell_apk.ContentShellActivity;
+import org.chromium.content_shell_apk.ContentShellActivityTestRule;
+import org.chromium.content_shell_apk.ContentShellTestCommon.TestCommonCallback;
+
+import java.lang.annotation.Annotation;
+
+/**
+ * ActivityTestRule with common functionality for testing the Java Bridge.
+ */
+public class JavaBridgeActivityTestRule
+        extends ContentShellActivityTestRule implements TestCommonCallback<ContentShellActivity> {
+    private JavaBridgeTestCommon mTestCommon;
+
+    public JavaBridgeActivityTestRule() {
+        super();
+        mTestCommon = new JavaBridgeTestCommon(this);
+    }
+
+    /**
+     * Sets up the ContentView. Intended to be called from setUp().
+     */
+    private void setUpContentView() {
+        mTestCommon.setUpContentView();
+    }
+
+    public TestCallbackHelperContainer getTestCallBackHelperContainer() {
+        return mTestCommon.getTestCallBackHelperContainer();
+    }
+
+    public void executeJavaScript(String script) throws Throwable {
+        mTestCommon.executeJavaScript(script);
+    }
+
+    public void injectObjectAndReload(Object object, String name) throws Exception {
+        injectObjectAndReload(object, name, null);
+    }
+
+    public void injectObjectAndReload(Object object, String name,
+            Class<? extends Annotation> requiredAnnotation) throws Exception {
+        mTestCommon.injectObjectsAndReload(object, name, null, null, requiredAnnotation);
+    }
+
+    public void injectObjectsAndReload(final Object object1, final String name1,
+            final Object object2, final String name2,
+            final Class<? extends Annotation> requiredAnnotation) throws Exception {
+        mTestCommon.injectObjectsAndReload(object1, name1, object2, name2, requiredAnnotation);
+    }
+
+    public void synchronousPageReload() throws Throwable {
+        mTestCommon.synchronousPageReload();
+    }
+
+    @Override
+    public Statement apply(final Statement base, Description desc) {
+        return super.apply(new Statement() {
+            @Override
+            public void evaluate() throws Throwable {
+                setUpContentView();
+                base.evaluate();
+            }
+        }, desc);
+    }
+}