Add a flag to enable the fix for r1717

pylib/gyp/input.py

 # Copyright (c) 2012 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from compiler.ast import Const
 from compiler.ast import Dict
 from compiler.ast import Discard
 from compiler.ast import List
 from compiler.ast import Module
 from compiler.ast import Node
@@ skipping 1654 matching lines @@
                                                include_shared_libraries,
                                                dependencies, False)
 
     return dependencies
 
   def DependenciesForLinkSettings(self, targets):
     """
     Returns a list of dependency targets whose link_settings should be merged
     into this target.
     """
-    return self._LinkDependenciesInternal(targets, False)
+
+    # TODO(sbaig) Currently, chrome depends on the bug that shared libraries'
+    # link_settings are propagated.  So for now, we will allow it, unless the
+    # 'allow_sharedlib_linksettings_propagation' flag is explicitly set to
+    # False.  Once chrome is fixed, we can remove this flag.
+    include_shared_libraries = \
+        targets[self.ref].get('allow_sharedlib_linksettings_propagation', True)
+    return self._LinkDependenciesInternal(targets, include_shared_libraries)
 
   def DependenciesToLinkAgainst(self, targets):
     """
     Returns a list of dependency targets that are linked into this target.
     """
     return self._LinkDependenciesInternal(targets, True)
 
 
 def BuildDependencyList(targets):
   # Create a DependencyGraphNode for each target.  Put it into a dict for easy
@@ skipping 1049 matching lines @@
     ValidateRunAsInTarget(target, target_dict, build_file)
     ValidateActionsInTarget(target, target_dict, build_file)
 
   # Generators might not expect ints.  Turn them into strs.
   TurnIntIntoStrInDict(data)
 
   # TODO(mark): Return |data| for now because the generator needs a list of
   # build files that came in.  In the future, maybe it should just accept
   # a list, and not the whole data dict.
   return [flat_list, targets, data]