CheckCallDie: add option to suppress successful output

build/android/gyp/util/build_utils.py

Index: build/android/gyp/util/build_utils.py
diff --git a/build/android/pylib/build_utils.py b/build/android/gyp/util/build_utils.py
similarity index 96%
rename from build/android/pylib/build_utils.py
rename to build/android/gyp/util/build_utils.py
index c97f1ed03f3998f7838b963c97db872c8b0e800e..bdfa28aa8a5cd9c9f18d46c03060ab46361913e6 100644
--- a/build/android/pylib/build_utils.py
+++ b/build/android/gyp/util/build_utils.py
@@ -71,7 +71,7 @@ def ReadJson(path):
 # particularly when the command fails, better highlights the command's failure.
 # This call will directly exit on a failure in the subprocess so that no python
 # stacktrace is printed after the output of the failed command.
-def CheckCallDie(args, cwd=None):
+def CheckCallDie(args, suppress_output=False, cwd=None):
   if not cwd:
     cwd = os.getcwd()
 
@@ -97,7 +97,7 @@ def CheckCallDie(args, cwd=None):
     sys.exit(child.returncode)
 
   else:
-    if stdout:
+    if stdout and not suppress_output:
       print stdout,
     return stdout