android envsetup: Move some webview-specific configuration into gyp_webview.

Engineers working on webview always call gyp_webview instead of gyp_chromium,
so there's no need to keep these settings in env vars.

BUG=330631
R=torne@chromium.org

Review URL: https://codereview.chromium.org/151603005

git-svn-id: http://src.chromium.org/svn/trunk/src/build@248723 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

android/envsetup.sh

@@ -108,7 +108,6 @@ export GYP_CROSSCOMPILE=1
 android_gyp() {
   # This is just a simple wrapper of gyp_chromium, please don't add anything
   # in this function.
-  echo "GYP_GENERATORS set to '$GYP_GENERATORS'"
   (
     "${CHROME_SRC}/build/gyp_chromium" --depth="${CHROME_SRC}" --check "$@"
   )

android/envsetup_functions.sh

@@ -261,11 +261,4 @@ ${ANDROID_SDK_VERSION}
     DEFINES+=" tracing_like_official_build=1"
   fi
   export GYP_DEFINES="${DEFINES}"
-
-  export GYP_GENERATORS="android"
-
-  export GYP_GENERATOR_FLAGS="${GYP_GENERATOR_FLAGS} default_target=All"
-  export GYP_GENERATOR_FLAGS="${GYP_GENERATOR_FLAGS} limit_to_target_all=1"
-
-  export CHROMIUM_GYP_FILE="${CHROME_SRC}/android_webview/all_webview.gyp"
 }