.gitignore updates

Update after Chromium roll in https://review.webrtc.org/24179004/
and Android project updates in https://review.webrtc.org/25029004/

BUG=
TBR=phoglund@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/24239004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7665 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/.gitignore b/.gitignore
index cfcee71..e6f0c88 100644
--- a/.gitignore
+++ b/.gitignore
@@ -53,7 +53,9 @@
 /talk/examples/android/bin
 /talk/examples/android/gen
 /talk/examples/android/libs
+/talk/examples/android/local.properties
 /talk/examples/android/obj
+/talk/examples/android/proguard-project.txt
 /testing
 /third_party/WebKit/Tools/Scripts
 /third_party/android_testrunner
@@ -113,6 +115,7 @@
 /tools/memory
 /tools/protoc_wrapper
 /tools/python
+/tools/relocation_packer
 /tools/sanitizer_options
 /tools/swarming_client
 /tools/tsan_suppressions
@@ -121,11 +124,15 @@
 /webrtc/examples/android/media_demo/bin
 /webrtc/examples/android/media_demo/gen
 /webrtc/examples/android/media_demo/libs
+/webrtc/examples/android/media_demo/local.properties
 /webrtc/examples/android/media_demo/obj
+/webrtc/examples/android/media_demo/proguard-project.txt
 /webrtc/examples/android/opensl_loopback/bin
 /webrtc/examples/android/opensl_loopback/gen
 /webrtc/examples/android/opensl_loopback/libs
+/webrtc/examples/android/opensl_loopback/local.properties
 /webrtc/examples/android/opensl_loopback/obj
+/webrtc/examples/android/opensl_loopback/proguard-project.txt
 /webrtc/modules/audio_device/android/test/bin/
 /webrtc/modules/audio_device/android/test/gen/
 /webrtc/modules/audio_device/android/test/libs/