Require more precise exclusions in remove_bundled_libraries.py

build/linux/unbundle/remove_bundled_libraries.py

Index: build/linux/unbundle/remove_bundled_libraries.py
diff --git a/build/linux/unbundle/remove_bundled_libraries.py b/build/linux/unbundle/remove_bundled_libraries.py
index 2e67c2a3793ec9d853a51d91191983bced1a69db..69e76f5da63b99cc8fbfd242a91c2e8b3bd85fde 100755
--- a/build/linux/unbundle/remove_bundled_libraries.py
+++ b/build/linux/unbundle/remove_bundled_libraries.py
@@ -47,6 +47,14 @@ def DoMain(argv):
 
       excluded = False
       for exclusion in args:
+        # Require precise exclusions. Find the right-most third_party
+        # in the relative path, and if there is more than one ignore
+        # the exclusion if it's completely contained within the part
+        # before right-most third_party path component.
+        split = relpath.rsplit(os.sep + 'third_party' + os.sep, 1)
+        if len(split) > 1 and split[0].startswith(exclusion):
+          continue
+
         if relpath.startswith(exclusion):
           # Multiple exclusions can match the same path. Go through all of them
           # and mark each one as used.