Fix Android build.

runtime/embedders/openglui/build_skia.sh

 #!/bin/bash
 
 function usage {
   echo "usage: $0 [ --help ] [ --android ] [ --arm | --x86] [ --debug ] [--clean] [<Dart directory>]"
   echo
   echo "Sync up Skia and build"
   echo
   echo " --android: Build for Android"
   echo " --x86 : Build for Intel"
   echo " --arm : Cross-compile for ARM (implies --android)"
@@ skipping 54 matching lines @@
   gclient sync
 
   export ANDROID_SDK_ROOT=`readlink -f ../android_tools/sdk`
 
   cd trunk
 
   echo "Using SDK ${ANDROID_SDK_ROOT}"
   if [ ${CLEAN} != 0 ] ; then
     ../android/bin/android_make -d $TARGET_ARCH -j clean
   else
-    env -i BUILDTYPE=$BUILD ANDROID_SDK_ROOT="${ANDROID_SDK_ROOT}" ../android/bin/android_make BUILDTYPE=$BUILD -d $TARGET_ARCH -j --debug=j
+    env -i BUILDTYPE=$BUILD ANDROID_SDK_ROOT="${ANDROID_SDK_ROOT}" PATH="${PATH}:${DART_DIR}/third_party/gsutil" ../android/bin/android_make BUILDTYPE=$BUILD -d $TARGET_ARCH -j --debug=j
   fi
 
 else
 
   echo "Building for desktop in `pwd`"
   # Desktop build. Requires svn client and Python.
 
   # Note that on Linux these packages should be installed first:
   #
   # libfreetype6
@@ skipping 15 matching lines @@
   fi
   cd ..
 
 fi
 
 popd
 # TODO(gram) We should really propogate the make exit code here.
 exit 0