Fix check_perms for r208246

Fix check_perms for r208246

Reland https://codereview.chromium.org/17569006/ with check_perms fix.

Support using loadable module for libpeerconnection on Android.

Borrowed create_standalone_apk_action.gypi, create_standalone_apk.py and finalize_apk_action.gypi from https://codereview.chromium.org/14843017/ with some minor fix in create_standalone_apk_action.gypi.

For some cases where libpeerconnection needs to be a loadable module, we need to add libpeerconnection.so into Chrome_apk.
This patch takes 2 steps:
1. build chrome with libpeer_target_type=loadable_module.
2. add libpeerconnection.so into the apk file.

TEST=run gyp: GYP_DEFINES="$GYP_DEFINES libpeer_target_type=loadable_module" build/gyp_chromium
build chrome
re-run gyp: GYP_DEFINES="$GYP_DEFINES libpeer_target_type=loadable_module" CHROMIUM_GYP_FILE="build/android/chrome_with_libs.gyp" build/gyp_chromium
build chrome_with_libs
install Chrome-with-libs.apk and it works for https://apprtc.appspot.com

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=208304

[wjia(left Chromium), 2013-06-24 23:44:42]

Committed patchset #2 manually as r208304.