WebRTC Android APK trybot recipe

scripts/slave/recipe_modules/chromium/config.expected/Release-linux.intel.64-to-linux.arm.32.json

 {
+  "android": {
+    "build_config_fs": "Release", 
+    "build_dir": "Path('[CHECKOUT]', 'out')", 
+    "compile_py": {
+      "build_tool": "ninja", 
+      "compiler": "goma"
+    }, 
+    "gyp_env": {
+      "GYP_DEFINES": "OS=linux component=static_library fastbuild=1 gcc_version=46 host_os=linux order_text_section=Path('[CHECKOUT]', 'orderfiles', 'orderfile.out') target_arch=arm", 
+      "GYP_GENERATORS": "ninja"
+    }
+  }, 
   "android_defaults": {
     "build_config_fs": "Release", 
     "build_dir": "Path('[CHECKOUT]', 'out')", 
     "compile_py": {
       "build_tool": "ninja", 
       "default_targets": [
         "All"
       ]
     }, 
     "gyp_env": {
@@ skipping 263 matching lines @@
   "v8": {
     "build_config_fs": "Release", 
     "build_dir": "Path('[CHECKOUT]')", 
     "compile_py": {
       "build_tool": "make"
     }, 
     "gyp_env": {
       "GYP_DEFINES": "target_arch=arm v8_target_arch=arm"
     }
   }, 
+  "webrtc_android_apk_try_builder": "Only \"android\" platform is supported (got: \"linux\")", 
   "x86_builder": "Cannot target x86 with TARGET_ARCH == arm", 
   "x86_try_builder": "config \"x86_try_builder\" includes \"x86_builder\", but [Cannot target x86 with TARGET_ARCH == arm]", 
   "x86_try_instrumentation_tests": "config \"x86_try_instrumentation_tests\" includes \"x86_builder\", but [Cannot target x86 with TARGET_ARCH == arm]", 
   "xcodebuild": "can not use xcodebuild on \"linux\""
 }