[Android] Fix miscellaneous small issues with gtest platform mode.

chrome/test/android/unit_tests_apk/AndroidManifest.xml

Index: chrome/test/android/unit_tests_apk/AndroidManifest.xml
diff --git a/chrome/test/android/unit_tests_apk/AndroidManifest.xml b/chrome/test/android/unit_tests_apk/AndroidManifest.xml
index ba86957d62902f6034124bfb36faf4b9bb76a5f1..fc0124ce1647403efd105b92e7a2dfe450b2a5cb 100644
--- a/chrome/test/android/unit_tests_apk/AndroidManifest.xml
+++ b/chrome/test/android/unit_tests_apk/AndroidManifest.xml
@@ -22,7 +22,8 @@ found in the LICENSE file.
             android:name="org.chromium.chrome.unit_tests_apk.ChromeNativeTestApplication">
         <activity android:name="org.chromium.native_test.NativeUnitTestActivity"
                 android:label="NativeTest"
-                android:configChanges="orientation|keyboardHidden">
+                android:configChanges="orientation|keyboardHidden"
+                android:process=":test_process">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
@@ -34,4 +35,4 @@ found in the LICENSE file.
             android:targetPackage="org.chromium.native_test"
             android:label="Instrumentation entry point for org.chromium.native_test"/>
 
-</manifest>
+</manifest>