Android: Add chrome-specific dynamic linker.

build/android/low_memory_device.gypi

Index: build/android/low_memory_device.gypi
diff --git a/build/android/low_memory_device.gypi b/build/android/low_memory_device.gypi
new file mode 100644
index 0000000000000000000000000000000000000000..b5302048843f1a912bd94475687cd09c8f0f4995
--- /dev/null
+++ b/build/android/low_memory_device.gypi
@@ -0,0 +1,11 @@
+# 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.
+
+{
+  'defines': [
+    # Any device which reports a physical RAM size smaller than this value
+    # will be treated as a 'low-end' device by Chromium code.
+    'ANDROID_LOW_MEMORY_DEVICE_THRESHOLD_MB=512'
+  ],
+}