Android: optimizes jni_generator.

base/android/jni_generator/jni_generator.py

Index: base/android/jni_generator/jni_generator.py
diff --git a/base/android/jni_generator/jni_generator.py b/base/android/jni_generator/jni_generator.py
index 32d09f1b8dc1b48dd140a33fc81b2fd315857676..12df8cf7926ae873ca286e776c3b71fbcc2f30fe 100755
--- a/base/android/jni_generator/jni_generator.py
+++ b/base/android/jni_generator/jni_generator.py
@@ -359,11 +359,11 @@ def ExtractNatives(contents, ptr_type):
   contents = contents.replace('\n', '')
   natives = []
   re_native = re.compile(r'(@NativeClassQualifiedName'
-                         '\(\"(?P<native_class_name>.*?)\"\))?\s*'
-                         '(@NativeCall(\(\"(?P<java_class_name>.*?)\"\)))?\s*'
-                         '(?P<qualifiers>\w+\s\w+|\w+|\s+)\s*?native '
-                         '(?P<return_type>\S*?) '
-                         '(?P<name>native\w+?)\((?P<params>.*?)\);')
+                         '\(\"(?P<native_class_name>.*?)\"\)\s+)?'
+                         '(@NativeCall(\(\"(?P<java_class_name>.*?)\"\))\s+)?'
+                         '(?P<qualifiers>\w+\s\w+|\w+|\s+)\s*native '
+                         '(?P<return_type>\S*) '
+                         '(?P<name>native\w+)\((?P<params>.*?)\);')
   for match in re.finditer(re_native, contents):
     native = NativeMethod(
         static='static' in match.group('qualifiers'),