Roll src/third_party/perfetto 7b49412a6e09..327406e12cba (6 commits)

Also introduces new required methods on ProducerClient to make the roll succeed.

https://android.googlesource.com/platform/external/perfetto.git/+log/7b49412a6e09..327406e12cba


git log 7b49412a6e09..327406e12cba --date=short --no-merges --format='%ad %ae %s'
2018-11-30 primiano@google.com Merge "ftrace: add PagePool for ftrace reader"
2018-11-29 treehugger-gerrit@google.com Merge "Flush on SIGINT to perfetto cmd."
2018-11-29 lalitm@google.com Merge "trace_processor: initial implementation of the args table"
2018-11-29 fmayer@google.com Merge "profiling: Add missing error return to script."
2018-11-29 eseckler@google.com Merge "perfetto: Add an IPC to associate trace writers with buffers"
2018-11-29 fmayer@google.com Merge "profiling: Better profiling script."

Change-Id: I5708cfcc3067b0e948eb4803c0963088cb3eddcc
Reviewed-on: https://chromium-review.googlesource.com/c/1356779Reviewed-by: Primiano Tucci <primiano@chromium.org>
Commit-Queue: Eric Seckler <eseckler@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612642}

DEPS

@@ -1008,7 +1008,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' +  '7b49412a6e09da8fe1d37dca67db94c12a509ffc',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' +  '327406e12cbace001312895b565ed0c33bf24186',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + 'ac0d98b5cee6c024b0cffeb4f8f45b6fc5ccdb78',

services/tracing/public/cpp/perfetto/producer_client.cc

@@ -302,4 +302,13 @@ std::unique_ptr<perfetto::TraceWriter> ProducerClient::CreateTraceWriter(
   return shared_memory_arbiter_->CreateTraceWriter(target_buffer);
 }
 
+void ProducerClient::RegisterTraceWriter(uint32_t writer_id,
+                                         uint32_t target_buffer) {
+  // TODO(eseckler): implement.
+}
+
+void ProducerClient::UnregisterTraceWriter(uint32_t writer_id) {
+  // TODO(eseckler): implement.
+}
+
 }  // namespace tracing

services/tracing/public/cpp/perfetto/producer_client.h

@@ -117,6 +117,8 @@ class COMPONENT_EXPORT(TRACING_CPP) ProducerClient
       perfetto::BufferID target_buffer) override;
   void NotifyFlushComplete(perfetto::FlushRequestID) override;
   perfetto::SharedMemory* shared_memory() const override;
+  void RegisterTraceWriter(uint32_t writer_id, uint32_t target_buffer) override;
+  void UnregisterTraceWriter(uint32_t writer_id) override;
 
   // These ProducerEndpoint functions are only used on the service
   // side and should not be called on the clients.