prepare skia for shared library build on android

platform_tools/android/gyp/skia_android.gypi

 {
   'targets': [
     {
       'target_name': 'CopySkiaAppDeps',
       'type': 'none',
       'dependencies': [
+        'skia_lib.gyp:skia_lib',
         'SampleApp.gyp:SampleApp',
         'bench.gyp:bench',
         'gm.gyp:gm',
         'tests.gyp:tests',
         'pathops_unittest.gyp:pathops_unittest',
         'tools.gyp:bench_pictures',
         'tools.gyp:render_pictures',
         'tools.gyp:render_pdfs',
         'tools.gyp:skimage',
       ],
@@ skipping 32 matching lines @@
             '<(PRODUCT_DIR)/lib.target/libbench.so',
             '<(PRODUCT_DIR)/lib.target/libbench_pictures.so',
             '<(PRODUCT_DIR)/lib.target/libgm.so',
             '<(PRODUCT_DIR)/lib.target/librender_pdfs.so',
             '<(PRODUCT_DIR)/lib.target/librender_pictures.so',
             '<(PRODUCT_DIR)/lib.target/libSampleApp.so',
             '<(PRODUCT_DIR)/lib.target/libskimage.so',
             '<(PRODUCT_DIR)/lib.target/libtests.so',
             '<(PRODUCT_DIR)/lib.target/libpathops_unittest.so',
             '<(PRODUCT_DIR)/lib.target/gdbserver',
+            '<(PRODUCT_DIR)/lib.target/libskia_android.so',
           ],
         },
       ],
     },
     {
       'target_name': 'skia_launcher',
       'type': 'executable',
       'sources': [
         '../launcher/skia_launcher.cpp',
       ],
@@ skipping 37 matching lines @@
             '-Dnative.libs.absolute.dir=<(PRODUCT_DIR)/android/libs',
             '-Dout.final.file=<(PRODUCT_DIR)/android/bin/SkiaAndroid.apk',
             '-Dsdk.dir=<(ANDROID_SDK_ROOT)',
             'debug',
           ],
         },
       ],
     },
   ],
 }