Webview: Add log verbosifier gradle project files to .gitignore.

Change-Id: I1992fc666afee7181ae98210ec356e48c764c890
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1632117
Auto-Submit: Eric Stevenson <estevenson@chromium.org>
Reviewed-by: Tobias Sargeant <tobiasjs@chromium.org>
Commit-Queue: Eric Stevenson <estevenson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#664314}

.gitignore

@@ -64,6 +64,8 @@ vs-chromium-project.txt
 .vscode/
 /_out
 /android_emulator_sdk
+/android_webview/tools/webview_log_verbosifier/.gradle/
+/android_webview/tools/webview_log_verbosifier/.settings/
 /ash/ash_unittests_run.xml
 /base/base_unittests_run.xml
 # See build/.gitignore for entries covering src/build.