Use thumb versions of external libraries with ARMv7.

build/android/setup.gyp

Index: build/android/setup.gyp
diff --git a/build/android/setup.gyp b/build/android/setup.gyp
index 7dce19de7266a0dcde4740bc4ec33e2d3848e7fe..f10ab3e861f3e2a33a35675dd5a11f3669c27e3d 100644
--- a/build/android/setup.gyp
+++ b/build/android/setup.gyp
@@ -12,13 +12,26 @@
           # <(SHARED_LIB_DIR)
           'target_name': 'copy_system_libraries',
           'type': 'none',
-          'copies': [
-            {
-              'destination': '<(SHARED_LIB_DIR)/',
-              'files': [
-                '<(android_stlport_libs_dir)/libstlport_shared.so',
+          'conditions': [
+            ['target_arch=="arm" and arm_thumb==1', {
+              'copies': [
+                {
+                  'destination': '<(SHARED_LIB_DIR)/',
+                  'files': [
+                    '<(android_stlport_libs_dir)/thumb/libstlport_shared.so',
+                  ],
+                },
               ],
-            },
+            }, {
+              'copies': [
+                {
+                  'destination': '<(SHARED_LIB_DIR)/',
+                  'files': [
+                    '<(android_stlport_libs_dir)/libstlport_shared.so',
+                  ],
+                },
+              ],
+            }],
           ],
         },
       ],