Fix tools/clang/pylib/clang/compile_db.py.

GetNinjaPath() function in 'tools/clang/pylib/clang/compile_db.py'
did not return the path to ninja correctly. This is fixed.

Bug: 807146
Change-Id: Ie149b4d5a2684454b6fdbbd59598421e008136fd
Reviewed-on: https://chromium-review.googlesource.com/892918Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Ramin Halavati <rhalavati@chromium.org>
Cr-Commit-Position: refs/heads/master@{#532903}

tools/clang/pylib/clang/compile_db.py

@@ -73,8 +73,8 @@ def _ProcessCompileDatabaseForWindows(compile_db):
 
 def GetNinjaPath():
   return os.path.join(
-      os.path.dirname(os.realpath(__file__)), '..', '..', '..', 'third_party',
-        'depot_tools', 'ninja')
+      os.path.dirname(os.path.realpath(__file__)),
+        '..', '..', '..', '..', 'third_party', 'depot_tools', 'ninja')
 
 
 # FIXME: This really should be a build target, rather than generated at runtime.