Roll src/third_party/perfetto f6a1cb2d8968..06b4f7386a8c (4 commits)

https://android.googlesource.com/platform/external/perfetto.git/+log/f6a1cb2d8968..06b4f7386a8c


git log f6a1cb2d8968..06b4f7386a8c --date=short --no-merges --format='%ad %ae %s'
2018-12-06 primiano@google.com Merge "Implement ftrace flushing"
2018-12-06 eseckler@google.com Merge "tracing service: Verify target buffers specified in commit requests"
2018-12-06 eseckler@google.com Merge "trace writer: Register/unregister on writer creation/destruction"
2018-12-06 eseckler@google.com Merge "trace writer: Set the kChunkNeedsPatching flag when necessary"


Created with:
  gclient setdep -r src/third_party/perfetto@06b4f7386a8c

The AutoRoll server is located here: https://autoroll.skia.org/r/perfetto-chromium-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


TBR=perfetto-bugs@google.com

Change-Id: Idda6e5efcff897194b1a51547934631761a92561
Reviewed-on: https://chromium-review.googlesource.com/c/1365427Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#614375}

DEPS

@@ -1011,7 +1011,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' +  'f6a1cb2d896893742578909409e8aa76e53c7cef',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' +  '06b4f7386a8c81d2fbf0a6b0fea518096a80c52f',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + 'ac0d98b5cee6c024b0cffeb4f8f45b6fc5ccdb78',