[WIP NOT FOR COMMIT] Switch Android to libc++

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index b32ca5432b3175ac5771005c61179ad8dfa79622..0fa295aa4c4ccac8bd4c116093c8c17614a0f292 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -1667,7 +1667,7 @@
           'android_ndk_root%': '<(android_ndk_root)',
           'android_sdk_root%': '<(android_sdk_root)',
           'android_sdk_version%': '<(android_sdk_version)',
-          'android_stlport_root': '<(android_ndk_root)/sources/cxx-stl/stlport',
+          'android_libc++_root': '<(android_ndk_root)/sources/cxx-stl/llvm-libc++',
           'host_os%': '<(host_os)',
 
           'android_sdk%': '<(android_sdk_root)/platforms/android-<(android_sdk_version)',
@@ -1744,9 +1744,10 @@
         'android_sdk%': '<(android_sdk)',
         'android_sdk_jar%': '<(android_sdk)/android.jar',
 
-        'android_stlport_root': '<(android_stlport_root)',
-        'android_stlport_include': '<(android_stlport_root)/stlport',
-        'android_stlport_libs_dir': '<(android_stlport_root)/libs/<(android_app_abi)',
+        'android_libc++_root': '<(android_libc++_root)',
+        'android_libc++_include': '<(android_libc++_root)/libcxx/include',
+        'android_libc++_libs_dir': '<(android_libc++_root)/libs/<(android_app_abi)',
+
         'host_os%': '<(host_os)',
 
         # Location of the "objcopy" binary, used by both gyp and scripts.
@@ -3526,6 +3527,7 @@
         # be disabled in ~/.gyp/include.gypi on the valgrind builders.
         'variables': {
           'werror%': '-Werror',
+          #'werror%': '',
           'libraries_for_target%': '',
         },
         'defines': [
@@ -3901,6 +3903,9 @@
                     # NOTE: While these flags enable the generation of .relro
                     # sections, the generated libraries can still be loaded on
                     # older Android platform versions.
+                    'cflags_cc': [
+                      '-std=gnu++11',
+                    ],
                     'ldflags': [
                         '-Wl,-z,relro',
                         '-Wl,-z,now',
@@ -4455,9 +4460,9 @@
           # Figure this out early since it needs symbols from libgcc.a, so it
           # has to be before that in the set of libraries.
           ['component=="shared_library"', {
-              'android_stlport_library': 'stlport_shared',
+              'android_libc++_library': 'c++_shared',
           }, {
-              'android_stlport_library': 'stlport_static',
+              'android_libc++_library': 'c++_static',
           }],
         ],
 
@@ -4541,8 +4546,6 @@
             'defines': [
               'ANDROID',
               '__GNU_SOURCE=1',  # Necessary for clone()
-              'USE_STLPORT=1',
-              '_STLP_USE_PTR_SPECIALIZATIONS=1',
               'CHROME_BUILD_ID="<(chrome_build_id)"',
             ],
             'ldflags!': [
@@ -4626,12 +4629,12 @@
                   '-nostdlib',
                 ],
                 'libraries': [
-                  '-l<(android_stlport_library)',
-                  # Manually link the libgcc.a that the cross compiler uses.
+                  '-l<(android_libc++_library)',
+                  '-latomic',
                   '<!(<(android_toolchain)/*-gcc -print-libgcc-file-name)',
+                  '-lm',
                   '-lc',
                   '-ldl',
-                  '-lm',
                 ],
               }],
               ['android_webview_build==1', {
@@ -4683,7 +4686,8 @@
                   '-Wl,--icf=safe',
                 ],
               }],
-              # NOTE: The stlport header include paths below are specified in
+              # TODO: delete this?
+              # NOTE: The libc++ header include paths below are specified in
               # cflags rather than include_dirs because they need to come
               # after include_dirs. Think of them like system headers, but
               # don't use '-isystem' because the arm-linux-androideabi-4.4.3
@@ -4691,17 +4695,19 @@
               # The include ordering here is important; change with caution.
               ['android_webview_build==0', {
                 'cflags': [
-                  '-isystem<(android_stlport_include)',
+                  '-isystem<(android_libc++_include)',
+                  '-I<(android_ndk_root)/sources/cxx-stl/llvm-libc++abi/libcxxabi/include',
+                  '-I<(android_ndk_root)/sources/android/support/include',
                 ],
                 'ldflags': [
-                  '-L<(android_stlport_libs_dir)',
+                  '-L<(android_libc++_libs_dir)',
                 ],
               }, { # else: android_webview_build!=0
                 'aosp_build_settings': {
                   # Specify that we want to statically link stlport from the
                   # NDK. This will provide all the include and library paths
                   # automatically at build time, and link the right library.
-                  'LOCAL_NDK_STL_VARIANT': 'stlport_static',
+                  'LOCAL_NDK_STL_VARIANT': 'libc++_static',
                 },
               }],
               ['target_arch=="ia32"', {