Merge "simpleperf: support report samples using format defined by protobuf."

diff --cc simpleperf/Android.mk
index 2e4c512,39c6ea1..56fe6ec
--- 1/simpleperf/Android.mk
--- 2/simpleperf/Android.mk
+++ b/simpleperf/Android.mk
@@@ -87,8 -89,8 +89,9 @@@ libsimpleperf_src_files := 
    read_elf.cpp \
    record.cpp \
    record_file_reader.cpp \
+   report_sample.proto \
    thread_tree.cpp \
 +  tracing.cpp \
    utils.cpp \
  
  libsimpleperf_src_files_linux := \