Use 'readlink -f .' instead of 'pwd' when setting CHROME_SRC

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
@@ skipping 39 matching lines @@
 # Add Android SDK's platform-tools to system path.
 export PATH="${PATH}:${ANDROID_SDK_ROOT}/platform-tools/"
 
 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
 
 if [ -z "${CHROME_SRC}" ]; then
-  # if $CHROME_SRC was not set, assume current directory is CHROME_SRC.
-  export CHROME_SRC=$(pwd)
+  # If $CHROME_SRC was not set, assume current directory is CHROME_SRC.
+  export CHROME_SRC=$(readlink -f .)
 fi
 
 if [ ! -d "${CHROME_SRC}" ]; then
   echo "CHROME_SRC must be set to the path of Chrome source code." >& 2
   return 1
 fi
 
 make() {
   # TODO(michaelbai): how to use ccache in NDK.
   if [ -n "${USE_CCACHE}" ]; then
@@ skipping 74 matching lines @@
 export GYP_DEFINES="${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"