[Android] Upstream additional changes from envsetup.

build/android/envsetup.sh

 #!/bin/bash
 
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-# Sets up environment for building Chromium on Android. Only Android NDK,
-# Revision 6b on Linux or Mac is offically supported.
-#
-# To run this script, the system environment ANDROID_NDK_ROOT must be set
-# to Android NDK's root path.
-#
-# TODO(michaelbai): Develop a standard for NDK/SDK integration.
-#
-# If current path isn't the Chrome's src directory, CHROME_SRC must be set
-# to the Chrome's src directory.
+# Sets up environment for building Chromium on Android.  It can either be
+# compiled with the Android tree or using the Android SDK/NDK. To build with
+# NDK/SDK: ". build/android/envsetup.sh --sdk".  Environment variable
+# ANDROID_SDK_BUILD=1 will then be defined and used in the rest of the setup to
+# specifiy build type.
 
-if [ ! -d "${ANDROID_NDK_ROOT}" ]; then
-  echo "ANDROID_NDK_ROOT must be set to the path of Android NDK, Revision 6b." \
-    >& 2
-  echo "which could be installed by" >& 2
-  echo "<chromium_tree>/src/build/install-build-deps-android-sdk.sh" >& 2
-  return 1
-fi
+# NOTE(yfriedman): This looks unnecessary but downstream the default value
+# should be 0 until all builds switch to SDK/NDK.
+export ANDROID_SDK_BUILD=1
+# Loop over args in case we add more arguments in the future.
+while [ "$1" != "" ]; do
+  case $1 in
+    -s | --sdk  ) export ANDROID_SDK_BUILD=1 ; shift ;;
+    *  )          shift ; break ;;
+  esac
+done
 
-if [ ! -d "${ANDROID_SDK_ROOT}" ]; then
-  echo "ANDROID_SDK_ROOT must be set to the path of Android SDK, Android 3.2." \
-    >& 2
-  echo "which could be installed by" >& 2
-  echo "<chromium_tree>/src/build/install-build-deps-android-sdk.sh" >& 2
-  return 1
+if [[ "${ANDROID_SDK_BUILD}" -eq 1 ]]; then
+  echo "Using SDK build"
 fi
 
 host_os=$(uname -s | sed -e 's/Linux/linux/;s/Darwin/mac/')
 
 case "${host_os}" in
   "linux")
     toolchain_dir="linux-x86"
     ;;
   "mac")
     toolchain_dir="darwin-x86"
     ;;
   *)
     echo "Host platform ${host_os} is not supported" >& 2
     return 1
 esac
 
-# The following defines will affect ARM code generation of both C/C++ compiler
-# and V8 mksnapshot.
-case "${TARGET_PRODUCT-full}" in
-  "full")
-    DEFINES=" target_arch=arm"
-    DEFINES+=" arm_neon=0 armv7=1 arm_thumb=1 arm_fpu=vfpv3-d16"
-    toolchain_arch="arm-linux-androideabi-4.4.3"
-    ;;
-  *x86*)
-    DEFINES=" target_arch=ia32 use_libffmpeg=0"
-    toolchain_arch="x86-4.4.3"
-    ;;
-  *)
-    echo "TARGET_PRODUCT: ${TARGET_PRODUCT} is not supported." >& 2
-    return 1
-esac
-
-# If we are building NDK/SDK, and in the upstream (open source) tree,
-# define a special variable for bringup purposes.
-case "${ANDROID_BUILD_TOP-undefined}" in
-  "undefined")
-    DEFINES+=" android_upstream_bringup=1"
-    ;;
-esac
-
-toolchain_path="${ANDROID_NDK_ROOT}/toolchains/${toolchain_arch}/prebuilt/"
-export ANDROID_TOOLCHAIN="${toolchain_path}/${toolchain_dir}/bin/"
-
-if [ ! -d "${ANDROID_TOOLCHAIN}" ]; then
-  echo "Can not find Android toolchain in ${ANDROID_TOOLCHAIN}." >& 2
-  echo "The NDK version might be wrong." >& 2
-  return 1
-fi
-
-export ANDROID_SDK_VERSION="15"
-
-# Needed by android antfiles when creating apks.
-export ANDROID_SDK_HOME=${ANDROID_SDK_ROOT}
-
-# Add Android SDK/NDK tools to system path.
-export PATH=$PATH:${ANDROID_NDK_ROOT}
-export PATH=$PATH:${ANDROID_SDK_ROOT}/tools
-export PATH=$PATH:${ANDROID_SDK_ROOT}/platform-tools
-# Must have tools like arm-linux-androideabi-gcc on the path for ninja
-export PATH=$PATH:${ANDROID_TOOLCHAIN}
-
-CURRENT_DIR="$(readlink -f ${PWD})"
+CURRENT_DIR="$(readlink -f "$(dirname $BASH_SOURCE)/../../")"
 if [ -z "${CHROME_SRC}" ]; then
   # If $CHROME_SRC was not set, assume current directory is CHROME_SRC.
   export CHROME_SRC="${CURRENT_DIR}"
 fi
 
 if [ "${CURRENT_DIR/"${CHROME_SRC}"/}" == "${CURRENT_DIR}" ]; then
   # If current directory is not in $CHROME_SRC, it might be set for other
   # source tree. If $CHROME_SRC was set correctly and we are in the correct
   # directory, "${CURRENT_DIR/"${CHROME_SRC}"/}" will be "".
   # Otherwise, it will equal to "${CURRENT_DIR}"
   echo "Warning: Current directory is out of CHROME_SRC, it may not be \
 the one you want."
   echo "${CHROME_SRC}"
 fi
 
-if [ ! -d "${CHROME_SRC}" ]; then
-  echo "CHROME_SRC must be set to the path of Chrome source code." >& 2
+# Source functions script.  The file is in the same directory as this script.
+. "$(dirname $BASH_SOURCE)"/envsetup_functions.sh
+
+if [ "${ANDROID_SDK_BUILD}" -eq 1 ]; then
+  sdk_build_init
+# Sets up environment for building Chromium for Android with source. Expects
+# android environment setup and lunch.
+elif [ -z "$ANDROID_BUILD_TOP" -o -z "$ANDROID_TOOLCHAIN" -o \
+  -z "$ANDROID_PRODUCT_OUT" ]; then
+  echo "Android build environment variables must be set."
+  echo "Please cd to the root of your Android tree and do: "
+  echo "  . build/envsetup.sh"
+  echo "  lunch"
+  echo "Then try this again."
+  echo "Or did you mean NDK/SDK build. Run envsetup.sh with --sdk argument."
   return 1
+else
+  non_sdk_build_init
 fi
 
-# Add Chromium Android development scripts to system path.
-# Must be after CHROME_SRC is set.
-export PATH=$PATH:${CHROME_SRC}/build/android
+# Workaround for valgrind build
+if [ -n "$CHROME_ANDROID_VALGRIND_BUILD" ]; then
+# arm_thumb=0 is a workaround for https://bugs.kde.org/show_bug.cgi?id=270709
+  DEFINES+=" arm_thumb=0 release_extra_cflags='-fno-inline\
+ -fno-omit-frame-pointer -fno-builtin' release_valgrind_build=1\
+ release_optimize=1"
+fi
+
+# Source a bunch of helper functions
+. ${CHROME_SRC}/build/android/adb_device_functions.sh
 
 ANDROID_GOMA_WRAPPER=""
 if [[ -d $GOMA_DIR ]]; then
   ANDROID_GOMA_WRAPPER="$GOMA_DIR/gomacc"
 fi
 export ANDROID_GOMA_WRAPPER
 
 export CC_target=$(basename ${ANDROID_TOOLCHAIN}/*-gcc)
 export CXX_target=$(basename ${ANDROID_TOOLCHAIN}/*-g++)
 export LINK_target=$(basename ${ANDROID_TOOLCHAIN}/*-gcc)
 export AR_target=$(basename ${ANDROID_TOOLCHAIN}/*-ar)
 
 # Performs a gyp_chromium run to convert gyp->Makefile for android code.
 android_gyp() {
   echo "GYP_GENERATORS set to '$GYP_GENERATORS'"
-  "${CHROME_SRC}/build/gyp_chromium" --depth="${CHROME_SRC}" "$@"
+  if [[ $GYP_DEFINES =~ "clang=1" ]]; then
+    echo -n "NOTE: You have \`clang=1' in \$GYP_DEFINES; "
+    echo "did you mean to run \`android_clang_gyp'?"
+  fi
+
+  "${CHROME_SRC}/build/gyp_chromium" --depth="${CHROME_SRC}" --check "$@"
 }
 
-export OBJCOPY=$(echo ${ANDROID_TOOLCHAIN}/*-objcopy)
-export STRIP=$(echo ${ANDROID_TOOLCHAIN}/*-strip)
-
-# The set of GYP_DEFINES to pass to gyp. Use 'readlink -e' on directories
-# to canonicalize them (remove double '/', remove trailing '/', etc).
-DEFINES+=" OS=android"
-DEFINES+=" android_build_type=0"
-DEFINES+=" host_os=${host_os}"
-DEFINES+=" linux_fpic=1"
-DEFINES+=" release_optimize=s"
-DEFINES+=" linux_use_tcmalloc=0"
-DEFINES+=" disable_nacl=1"
-DEFINES+=" remoting=0"
-DEFINES+=" p2p_apis=0"
-DEFINES+=" enable_touch_events=1"
-DEFINES+=" build_ffmpegsumo=0"
-DEFINES+=" gtest_target_type=shared_library"
-DEFINES+=" branding=Chromium"
-DEFINES+=\
-" android_sdk=${ANDROID_SDK_ROOT}/platforms/android-${ANDROID_SDK_VERSION}"
-DEFINES+=" android_sdk_tools=${ANDROID_SDK_ROOT}/platform-tools"
-
-export GYP_DEFINES="${DEFINES}"
-
-# Use the "android" flavor of the Makefile generator for both Linux and OS X.
-export GYP_GENERATORS="make-android"
-
-# Use our All target as the default
-export GYP_GENERATOR_FLAGS="${GYP_GENERATOR_FLAGS} default_target=All"
-
-# We want to use our version of "all" targets.
-export CHROMIUM_GYP_FILE="${CHROME_SRC}/build/all_android.gyp"
+# FLOCK needs to be null on system that has no flock
+which flock > /dev/null || export FLOCK=