Ignore block comments in JNI generator.

The JNI generator was being confused by the word 'native' appearing
in a block comment in ChromeBrowserProvider.java. This patch ensures
that all comments are stripped out correctly.

BUG=138941
TEST=jni_generator_tests.py


Review URL: https://chromiumcodereview.appspot.com/10830035

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@148967 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed