[Android] "Namespace" shared libraries for the component build

build/java_apk.gypi

 # 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.
 
 # This file is meant to be included into a target to provide a rule
 # to build Android APKs in a consistent manner.
 #
 # To use this, create a gyp target with the following form:
 # {
 #   'target_name': 'my_package_apk',
@@ skipping 20 matching lines @@
 #    and included in the output of this target.
 #  asset_location - The directory where assets are located.
 #  generated_src_dirs - Same as additional_src_dirs except used for .java files
 #    that are generated at build time. This should be set automatically by a
 #    target's dependencies. The .java files in these directories are not
 #    included in the 'inputs' list (unlike additional_src_dirs).
 #  input_jars_paths - The path to jars to be included in the classpath. This
 #    should be filled automatically by depending on the appropriate targets.
 #  is_test_apk - Set to 1 if building a test apk.  This prevents resources from
 #    dependencies from being re-included.
-#  native_libs_paths - The path to any native library to be included in this
-#    target. This should be a path in <(SHARED_LIB_DIR). A stripped copy of
-#    the library will be included in the apk.
+#  native_lib_target - The target_name of the target which generates the final
+#    shared library to be included in this apk. A stripped copy of the
+#    library will be included in the apk.
 #  resource_dir - The directory for resources.
 #  R_package - A custom Java package to generate the resource file R.java in.
 #    By default, the package given in AndroidManifest.xml will be used.
 #  java_strings_grd - The name of the grd file from which to generate localized
 #    strings.xml files, if any.
 #  library_manifest_paths'- Paths to additional AndroidManifest.xml files from
 #    libraries.
 
 {
   'variables': {
     'additional_input_paths': [],
     'input_jars_paths': [],
     'library_dexed_jars_paths': [],
     'additional_src_dirs': [],
     'generated_src_dirs': [],
     'app_manifest_version_name%': '<(android_app_version_name)',
     'app_manifest_version_code%': '<(android_app_version_code)',
     'proguard_enabled%': 'false',
     'proguard_flags_paths%': ['<(DEPTH)/build/android/empty_proguard.flags'],
-    'native_libs_paths': [],
+    'native_lib_target%': '',
     'jar_name': 'chromium_apk_<(_target_name).jar',
     'resource_dir%':'<(DEPTH)/build/android/ant/empty/res',
     'R_package%':'',
     'additional_res_dirs': [],
     'additional_res_packages': [],
     'is_test_apk%': 0,
     'java_strings_grd%': '',
     'library_manifest_paths' : [],
     'resource_input_paths': [],
     'intermediate_dir': '<(PRODUCT_DIR)/<(_target_name)',
@@ skipping 45 matching lines @@
     }],
     ['R_package != ""', {
       'variables': {
         # We generate R.java in package R_package (in addition to the package
         # listed in the AndroidManifest.xml, which is unavoidable).
         'additional_res_dirs': ['<(DEPTH)/build/android/ant/empty/res'],
         'additional_res_packages': ['<(R_package)'],
         'additional_R_text_files': ['<(PRODUCT_DIR)/<(package_name)/R.txt'],
       },
     }],
-    ['native_libs_paths != [] and component == "shared_library"', {
+    ['native_lib_target != "" and component == "shared_library"', {
       'dependencies': [
         '<(DEPTH)/build/android/setup.gyp:copy_system_libraries',
       ]
     }],
-    ['native_libs_paths != []', {
+    ['native_lib_target != ""', {
       'variables': {
         'compile_input_paths': [ '<(native_libraries_java_stamp)' ],
         'generated_src_dirs': [ '<(native_libraries_java_dir)' ],
+        'native_libs_paths': ['<(SHARED_LIB_DIR)/<(native_lib_target).>(android_product_extension)'],
       },
       'actions': [
         {
           'action_name': 'ordered_libraries_<(_target_name)',
           'message': 'Writing dependency ordered libraries for <(_target_name).',
           'inputs': [
             '<(DEPTH)/build/android/pylib/build_utils.py',
             '<(DEPTH)/build/android/gyp/write_ordered_libraries.py',
             '<@(native_libs_paths)',
           ],
@@ skipping 116 matching lines @@
               ],
             },
           ],
         }, {
           'variables': {
             'apk_libraries_dir': '<(intermediate_dir)/libs/<(android_app_abi)',
             'package_input_paths': [ '<(strip_stamp)' ],
           },
         }],
       ],
-    }], # native_libs_paths != []
+    }], # native_lib_target != ''
     ['java_strings_grd != ""', {
       'variables': {
         'res_grit_dir': '<(SHARED_INTERMEDIATE_DIR)/<(package_name)_apk/res_grit',
         'additional_res_dirs': ['<(res_grit_dir)'],
         # grit_grd_file is used by grit_action.gypi, included below.
         'grit_grd_file': '<(java_in_dir)/strings/<(java_strings_grd)',
         'resource_input_paths': [
           '<!@pymod_do_main(grit_info <@(grit_defines) --outputs "<(res_grit_dir)" <(grit_grd_file))'
         ],
       },
@@ skipping 265 matching lines @@
 
         # Add list of inputs to the command line, so if inputs change
         # (e.g. if a Java file is removed), the command will be re-run.
         # TODO(newt): remove this once crbug.com/177552 is fixed in ninja.
         '-DTHIS_IS_IGNORED=>!(echo \'>(_inputs)\' | md5sum)',
 
       ]
     },
   ],
 }