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

content/public/android/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/android/rules.gni")
 
 content_jni_gypi_values = exec_script("//build/gypi_to_gn.py",
     [ rebase_path("../../content_jni.gypi") ],
     "scope",
@@ skipping 165 matching lines @@
     "java/src/org/chromium/content/common/TopControlsState.template",
   ]
   package_name = "org/chromium/content/common"
   inputs = [
     "//content/public/common/top_controls_state_list.h"
   ]
 }
 
 java_cpp_template("screen_orientation_values_java") {
   sources = [
-    "java/src/org/chromium/content/common/ScreenOrientationValues.template",
+    "java/src/org/chromium/content_public/common/ScreenOrientationValues.template",
   ]
-  package_name = "org/chromium/content/common"
+  package_name = "org/chromium/content_public/common"
   inputs = [
     "//content/public/common/screen_orientation_values_list.h"
   ]
 }
 
 java_cpp_template("content_gamepad_mapping_java") {
   sources = [
     "java/src/org/chromium/content/browser/input/CanonicalAxisIndex.template",
     "java/src/org/chromium/content/browser/input/CanonicalButtonIndex.template",
   ]
@@ skipping 37 matching lines @@
     "//net/android:net_java_test_support",
     "//ui/android:ui_java",
     ":content_java",
   ]
 
   DEPRECATED_java_in_dir = "javatests/src"
 }
 
 
 # TODO(GYP): content_icudata