[Cronet] Strip debug symbols from i386 static framework for iOS.

components/cronet/tools/hide_symbols.py

Index: components/cronet/tools/hide_symbols.py
diff --git a/components/cronet/tools/hide_symbols.py b/components/cronet/tools/hide_symbols.py
index a66c108f58e983ce1ff63e8a63095962ecb6fa85..d0de6817405772035c051d5705740232b172b92f 100755
--- a/components/cronet/tools/hide_symbols.py
+++ b/components/cronet/tools/hide_symbols.py
@@ -89,6 +89,11 @@ def main():
         options.input_libs, options.deps_lib,
       ]
       subprocess.check_call(command)
+      # Strip debug info from output lib so its size doesn't exceed 512mb.
+      command = [
+        'xcrun', 'strip', '-S', options.output_lib,
+      ]
+      subprocess.check_call(command)
       return
 
   if os.path.exists(options.output_lib):