Enable clang-format on AOSP Music Player

* Formatted all java code using:
  clang-format -i --style=file src/com/android/music/*.java
* Add clang-format file
* Add PREUPLOAD to check newly uploaded code

Test: mm -j 40
Change-Id: I202b98b29789fc10ad0b11da0c37f6aa0291131c
diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..178675d
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,32 @@
+#
+# Copyright (C) 2016 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+#
+# Below are some minor deviations from the default Google style to
+# accommodate for handling of the large legacy code base.
+#
+
+BasedOnStyle: Google
+CommentPragmas: NOLINT:.*
+DerivePointerAlignment: false
+
+---
+Language: Java
+BasedOnStyle: Google
+IndentWidth: 4
+ContinuationIndentWidth: 8
+ColumnLimit: 100
+AllowShortIfStatementsOnASingleLine: true