Android: Add content_browsertests to the list of compile targets

BUG=138275


Review URL: https://chromiumcodereview.appspot.com/11938004

git-svn-id: http://src.chromium.org/svn/trunk/src/build@177119 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

all_android.gyp

@@ -47,6 +47,7 @@
         '../cc/cc_tests.gyp:cc_unittests',
         '../chrome/chrome.gyp:unit_tests',
         '../components/components.gyp:components_unittests',
+        '../content/content.gyp:content_browsertests',
         '../content/content.gyp:content_shell_test_apk',
         '../content/content.gyp:content_unittests',
         '../gpu/gpu.gyp:gpu_unittests',