Revert "Revert "Upgrade to 5.0.71.48"" DO NOT MERGE

This reverts commit f2e3994fa5148cc3d9946666f0b0596290192b0e,
and updates the x64 makefile properly so it doesn't break that
build.

FPIIM-449

Change-Id: Ib83e35bfbae6af627451c926a9650ec57c045605
(cherry picked from commit 109988c7ccb6f3fd1a58574fa3dfb88beaef6632)
diff --git a/build/android/strip_native_libraries.gypi b/build/android/strip_native_libraries.gypi
new file mode 100644
index 0000000..be8a5cb
--- /dev/null
+++ b/build/android/strip_native_libraries.gypi
@@ -0,0 +1,54 @@
+# Copyright 2013 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# This file is meant to be included into an action to provide a rule that strips
+# native libraries.
+#
+# To use this, create a gyp target with the following form:
+#  {
+#    'action_name': 'strip_native_libraries',
+#    'actions': [
+#      'variables': {
+#        'ordered_libraries_file': 'file generated by write_ordered_libraries'
+#        'input_paths': 'files to be added to the list of inputs'
+#        'stamp': 'file to touch when the action is complete'
+#        'stripped_libraries_dir': 'directory to store stripped libraries',
+#      },
+#      'includes': [ '../../build/android/strip_native_libraries.gypi' ],
+#    ],
+#  },
+#
+
+{
+  'message': 'Stripping libraries for <(_target_name)',
+  'variables': {
+    'input_paths': [],
+  },
+  'inputs': [
+    '<(DEPTH)/build/android/gyp/util/build_utils.py',
+    '<(DEPTH)/build/android/gyp/strip_library_for_device.py',
+    '<(ordered_libraries_file)',
+    '>@(input_paths)',
+  ],
+  'outputs': [
+    '<(stamp)',
+  ],
+  'conditions': [
+    ['android_must_copy_system_libraries == 1', {
+      # Add a fake output to force the build to always re-run this step. This
+      # is required because the real inputs are not known at gyp-time and
+      # changing base.so may not trigger changes to dependent libraries.
+      'outputs': [ '<(stamp).fake' ]
+    }],
+  ],
+  'action': [
+    'python', '<(DEPTH)/build/android/gyp/strip_library_for_device.py',
+    '--android-strip=<(android_strip)',
+    '--android-strip-arg=--strip-unneeded',
+    '--stripped-libraries-dir=<(stripped_libraries_dir)',
+    '--libraries-dir=<(SHARED_LIB_DIR),<(PRODUCT_DIR)',
+    '--libraries=@FileArg(<(ordered_libraries_file):libraries)',
+    '--stamp=<(stamp)',
+  ],
+}