bin/deps-and-gyp -> bin/sync-and-gyp

NOTREECHECKS=true

BUG=skia:

Review URL: https://codereview.chromium.org/1423463005
diff --git a/bin/deps-and-gyp b/bin/deps-and-gyp
deleted file mode 100755
index 06f0fd5..0000000
--- a/bin/deps-and-gyp
+++ /dev/null
@@ -1,58 +0,0 @@
-#!/bin/sh
-
-# Copyright 2015 Google Inc.
-#
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# This script will update Skia's dependenciess as necessary and run
-# gyp if needed.
-
-# Depends on: Posix-compliant shell, Python, and Git.
-#
-# Example usage:
-#
-#   git clone https://skia.googlesource.com/skia
-#   cd skia
-#   bin/deps-and-gyp
-#   ninja -C out/Debug && out/Debug/dm
-#
-# Once changes are made to DEPS or gyp/ or the source, call:
-#
-#   bin/deps-and-gyp
-
-if [ "$SKIA_OUT" ]; then
-    mkdir -p "$SKIA_OUT" || exit
-    # get non-relative path of $SKIA_OUT before changing directory.
-    SKIA_OUT="$(cd "$SKIA_OUT"; pwd)"
-fi
-
-cd "$(dirname "$0")/.."
-
-if ! [ -f DEPS ]; then
-    echo DEPS file missing >&2
-    exit 1
-fi
-
-GIT_SYNC_DEPS_QUIET=1 python tools/git-sync-deps || exit
-
-catifexists() { if [ -f "$1" ]; then cat "$1"; fi; }
-
-gyp_hasher() {
-    {
-        echo "$CC"
-        echo "$CXX"
-        echo "$GYP_GENERATORS"
-        echo "$GYP_DEFINES"
-        find gyp -type f -print -exec git hash-object {} \;
-        find bench gm tests -name '*.c*' | LANG= sort
-    } | git hash-object --stdin
-}
-
-: ${SKIA_OUT:=out}
-GYP_HASH=$(gyp_hasher)
-HASH_PATH="${SKIA_OUT}/gyp_hash"
-if [ "$GYP_HASH" != "$(catifexists "$HASH_PATH")" ]; then
-    python ./gyp_skia || exit
-    echo "$GYP_HASH" > "$HASH_PATH"
-fi
diff --git a/bin/sync-and-gyp b/bin/sync-and-gyp
index 8b3cfa9..c944079 100755
--- a/bin/sync-and-gyp
+++ b/bin/sync-and-gyp
@@ -8,35 +8,33 @@
 # This script will update Skia's dependenciess as necessary and run
 # gyp if needed.
 
-# Example usage (assumes Posix-standard shell, git installed):
+# Depends on: Posix-compliant shell, Python, and Git.
 #
-#   git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
-#   export PATH="${PWD}/depot_tools:${PATH}"
+# Example usage:
+#
 #   git clone https://skia.googlesource.com/skia
 #   cd skia
-#   bin/sync-and-gyp && ninja -C out/Debug
-#   out/Debug/dm
+#   bin/sync-and-gyp
+#   ninja -C out/Debug && out/Debug/dm
 #
-# Once changes are made to DEPS or gyp/ or the source, recompile Skia with:
+# Once changes are made to DEPS or gyp/ or the source, call:
 #
-#   ${skiadir}/bin/sync-and-gyp && ninja -C ${skiadir}/out/Debug
+#   bin/sync-and-gyp
+
+if [ "$SKIA_OUT" ]; then
+    mkdir -p "$SKIA_OUT" || exit
+    # get non-relative path of $SKIA_OUT before changing directory.
+    SKIA_OUT="$(cd "$SKIA_OUT"; pwd)"
+fi
 
 cd "$(dirname "$0")/.."
 
-if ! [ -f .gclient ] ; then
-    gclient config --unmanaged 'https://skia.googlesource.com/skia'
-    printf ',s/"skia"/"."/\nwq\n' | ed .gclient
-fi
-
 if ! [ -f DEPS ]; then
     echo DEPS file missing >&2
     exit 1
 fi
 
-if [ "$(git hash-object DEPS)" != "$(git config sync-deps.last)" ] ; then
-    gclient sync || exit
-    git config sync-deps.last "$(git hash-object DEPS)"
-fi
+GIT_SYNC_DEPS_QUIET=1 python tools/git-sync-deps || exit
 
 catifexists() { if [ -f "$1" ]; then cat "$1"; fi; }