Fix the gdb path for NDK-r8b.

- Removed android.toolchain property.
- Added android.gdbserver property.
- Changed property-location to check the both file and directory's existence.

TBR=jam
BUG=

Review URL: https://chromiumcodereview.appspot.com/10823435

git-svn-id: http://src.chromium.org/svn/trunk/src/build@155108 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

android/ant/common.xml

@@ -53,7 +53,7 @@
         <condition>
           <and>
             <equals arg1="@{check-exists}" arg2="true"/>
-            <not><available type="dir" file="@{location}"/></not>
+            <not><available file="@{location}"/></not>
           </and>
         </condition>
       </fail>
@@ -74,5 +74,5 @@
   <property-location name="sdk.dir" location="${ANDROID_SDK_ROOT}"/>
   <property-value name="target" value="android-${ANDROID_SDK_VERSION}"/>
   <property name="source.dir" location="src"/>
-  <property-location name="toolchain.dir" location="${ANDROID_TOOLCHAIN}"/>
+  <property-location name="android.gdbserver" location="${ANDROID_GDBSERVER}"/>
 </project>

android/gdb_apk

@@ -158,7 +158,7 @@ file ${app_process}
 target remote :4321
 EOF
 
-gdb=$(echo $ANDROID_TOOLCHAIN/*gdb)
+gdb=$(echo $ANDROID_TOOLCHAIN/../../linux-x86/bin/*gdb)
 if [[ ! -f ${gdb} ]] ; then
   echo "Wow no gdb in env var ANDROID_TOOLCHAIN which is $ANDROID_TOOLCHAIN"
   exit 4

apk_test.gypi

@@ -61,8 +61,6 @@
               '--ant-args',
               '-DANDROID_SDK_VERSION=<(android_sdk_version)',
               '--ant-args',
-              '-DANDROID_TOOLCHAIN=<(android_toolchain)',
-              '--ant-args',
               '-DANDROID_GDBSERVER=<(android_gdbserver)',
               '--ant-args',
               '-DCHROMIUM_SRC=<(ant_build_out)/../..',

java.gypi

@@ -60,7 +60,6 @@
         '-DANDROID_SDK_ROOT=<(android_sdk_root)',
         '-DANDROID_SDK_TOOLS=<(android_sdk_tools)',
         '-DANDROID_SDK_VERSION=<(android_sdk_version)',
-        '-DANDROID_TOOLCHAIN=<(android_toolchain)',
         '-DANDROID_GDBSERVER=<(android_gdbserver)',
         '-Dbasedir=<(java_in_dir)',
         '-buildfile',