Create org.chromium.content_public.common and move two classes there.

content/content.gyp

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chromium_code': 1,  # Use higher warning level.
     'chromium_enable_vtune_jit_for_v8%': 0,  # enable the vtune support for V8 engine.
     'directxsdk_exists': '<!pymod_do_main(dir_exists ../third_party/directxsdk)',
   },
@@ skipping 534 matching lines @@
           'variables': {
             'package_name': 'org/chromium/content/common',
             'template_deps': ['public/common/top_controls_state_list.h'],
           },
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
         {
           'target_name': 'screen_orientation_values_java',
           'type': 'none',
           'sources': [
-            'public/android/java/src/org/chromium/content/common/ScreenOrientationValues.template',
+            'public/android/java/src/org/chromium/content_public/common/ScreenOrientationValues.template',
           ],
           'variables': {
-            'package_name': 'org/chromium/content/common',
+            'package_name': 'org/chromium/content_public/common',
             'template_deps': ['public/common/screen_orientation_values_list.h'],
           },
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
         {
           'target_name': 'java_set_jni_headers',
           'type': 'none',
           'variables': {
             'jni_gen_package': 'content',
             'input_java_class': 'java/util/HashSet.class',
@@ skipping 47 matching lines @@
               'browser/gamepad/canonical_axis_index_list.h',
               'browser/gamepad/canonical_button_index_list.h',
             ],
           },
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
       ],
     }],  # OS == "android"
   ],
 }