[Android]: Roll android_tools to update ndk_experimental to r10-rc3

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index 29d8c1cb4c7ffa727fbcdd899fcea8838ab47423..d9558b9a6aca8984354013f99696885d72b12e08 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -1648,9 +1648,9 @@
             ['target_arch == "x64"', {
               'android_app_abi%': 'x86_64',
               'android_gdbserver%': '<(android_ndk_experimental_root)/prebuilt/android-x86_64/gdbserver/gdbserver',
-              'android_ndk_sysroot%': '<(android_ndk_experimental_root)/platforms/android-20/arch-x86_64',
+              'android_ndk_sysroot%': '<(android_ndk_experimental_root)/platforms/android-L/arch-x86_64',
               'android_ndk_lib_dir%': 'usr/lib64',
-              'android_toolchain%': '<(android_ndk_experimental_root)/toolchains/x86_64-4.8/prebuilt/<(host_os)-<(android_host_arch)/bin',
+              'android_toolchain%': '<(android_ndk_experimental_root)/toolchains/x86_64-4.9/prebuilt/<(host_os)-<(android_host_arch)/bin',
               'android_stlport_root': '<(android_ndk_experimental_root)/sources/cxx-stl/stlport',
             }],
             ['target_arch=="arm"', {
@@ -1669,7 +1669,7 @@
             ['target_arch == "arm64"', {
               'android_app_abi%': 'arm64-v8a',
               'android_gdbserver%': '<(android_ndk_experimental_root)/prebuilt/android-arm64/gdbserver/gdbserver',
-              'android_ndk_sysroot%': '<(android_ndk_experimental_root)/platforms/android-20/arch-arm64',
+              'android_ndk_sysroot%': '<(android_ndk_experimental_root)/platforms/android-L/arch-arm64',
               'android_ndk_lib_dir%': 'usr/lib',
               'android_toolchain%': '<(android_ndk_experimental_root)/toolchains/aarch64-linux-android-4.9/prebuilt/<(host_os)-<(android_host_arch)/bin',
               'android_stlport_root': '<(android_ndk_experimental_root)/sources/cxx-stl/stlport',