Format all Java files with google-java-format

Having a standard tool for formatting saves reviewers' valuable time.
google-java-format is Google's standard formatter and is somewhat
inspired by gofmt[1]. This commit formats everything using
google-java-format version 1.2.

The downside of this one-off formatting is breaking blame. This can be
somewhat hacked around with a tool like git-hyper-blame[2], but it's
definitely not optimal until/unless this kind of feature makes its way
to git core.

Not in this change:
* Tool support, e.g. Eclipse. The command must be run manually [3].
* Documentation of best practice, e.g. new 100-column default.

[1] https://talks.golang.org/2015/gofmt-en.slide#3
[2] https://commondatastorage.googleapis.com/chrome-infra-docs/flat/depot_tools/docs/html/git-hyper-blame.html
[3] git ls-files | grep java$ | xargs google-java-format -i

Change-Id: Id5f3c6de95ce0b68b41f0a478b5c99a93675aaa3
Signed-off-by: David Pursehouse <dpursehouse@collab.net>

gerrit-extension-api/src/test/java/com/google/gerrit/extensions/client/RangeTest.java

@@ -14,7 +14,6 @@
 
 package com.google.gerrit.extensions.client;
 
-
 import static com.google.gerrit.extensions.client.RangeSubject.assertThat;
 
 import org.junit.Test;
@@ -75,8 +74,8 @@ public class RangeTest {
     assertThat(range).isInvalid();
   }
 
-  private Comment.Range createRange(int startLine, int startCharacter,
-      int endLine, int endCharacter) {
+  private Comment.Range createRange(
+      int startLine, int startCharacter, int endLine, int endCharacter) {
     Comment.Range range = new Comment.Range();
     range.startLine = startLine;
     range.startCharacter = startCharacter;