Canvas API. There are still a number of things to do:

runtime/embedders/openglui/build_skia.sh

+#!/bin/sh
+
+function usage {
+  echo "usage: $0 [ --help ] [ --android ] [ --arm | --x86] [--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)"
+  echo
+}
+
+DO_ANDROID=0
+TARGET_ARCH=x86
+CLEAN=0
+DART_DIR=../../..
+
+while [ ! -z "$1" ] ; do
+  case $1 in
+    "-h"|"-?"|"-help"|"--help")
+      usage
+      exit 1
+    ;;
+    "--android")
+      DO_ANDROID=1
+    ;;
+    "--arm")
+      TARGET_ARCH=arm
+      DO_ANDROID=1
+    ;;
+    "--x86")
+      TARGET_ARCH=x86
+    ;;
+    "--clean")
+      CLEAN=1
+    ;;
+    *)
+      if [ ! -d "$1" ]
+      then
+        echo "Unrecognized argument: $1"
+        usage
+        exit 1
+      fi
+      DART_DIR="$1"
+    ;;
+  esac
+  shift
+done
+
+mkdir -p "${DART_DIR}/third_party/skia"
+pushd "${DART_DIR}/third_party/skia"
+
+if [ ${DO_ANDROID} != 0 ] ; then
+  echo "Building for Android ${TARGET_ARCH}"
+  curl http://skia.googlecode.com/svn/android/gclient.config -o .gclient
+  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 $TARGET_ARCH -j clean
+  else
+    env -i BUILDTYPE=Debug ANDROID_SDK_ROOT="${ANDROID_SDK_ROOT}" ../android/bin/android_make BUILDTYPE=Debug -d $TARGET_ARCH -j --debug=j
+    #../android/bin/android_make ANDROID_NDK= BUILDTYPE=Debug ANDROID_SDK_ROOT= -d $TARGET_ARCH -j
+    #../android/bin/android_make ANDROID_NDK= BUILDTYPE=Debug ANDROID_SDK_ROOT="${ANDROID_SDK_ROOT}" -d $TARGET_ARCH -j
+    #../android/bin/android_make BUILDTYPE=Debug ANDROID_SDK_ROOT="${ANDROID_SDK_ROOT}" -d $TARGET_ARCH -j png
+  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
+  # libfreetype6-dev
+  # libpng12-0, libpng12-dev
+  # libglu1-mesa-dev
+  # mesa-common-dev
+  # freeglut3-dev
+
+  SKIA_INSTALLDIR=`pwd`
+  svn checkout http://skia.googlecode.com/svn/trunk
+  cd trunk
+  if [ ${CLEAN} != 0 ] ; then
+    echo 'Cleaning'
+    make clean
+  else
+    # Dart sets BUILDTYPE to DebugX64 which breaks Skia build.
+    make BUILDTYPE=Debug
+  fi
+  cd ..
+
+fi
+
+popd
+# TODO(gram) We should really propogate the make exit code here.
+exit 0
+
+