Expose HWUI metrics via statsd

Add atom definition for HWUI stats. Implement a C++
statsd puller inside GraphicsStatsService service.
GraphicsStatsService has new private API, which
returns a serialized proto with HWUI stats grouped
by application package and version.

Test: Ran "adb shell cmd stats pull-source 10068"
Test: Ran "statsd_testdrive 10068" and it looks OK
Bug: 142665516
Change-Id: I400c0dbf9e25181d36f9018688b03d86839ac3de
diff --git a/libs/hwui/ProfileData.cpp b/libs/hwui/ProfileData.cpp
index 7921662..a8e36e3 100644
--- a/libs/hwui/ProfileData.cpp
+++ b/libs/hwui/ProfileData.cpp
@@ -15,6 +15,7 @@
  */
 
 #include "ProfileData.h"
+#include "Properties.h"
 
 #include <cinttypes>
 
@@ -102,6 +103,7 @@
         mGPUFrameCounts[i] >>= divider;
         mGPUFrameCounts[i] += other.mGPUFrameCounts[i];
     }
+    mPipelineType = other.mPipelineType;
 }
 
 void ProfileData::dump(int fd) const {
@@ -157,6 +159,7 @@
     mTotalFrameCount = 0;
     mJankFrameCount = 0;
     mStatStartTime = systemTime(SYSTEM_TIME_MONOTONIC);
+    mPipelineType = Properties::getRenderPipelineType();
 }
 
 void ProfileData::reportFrame(int64_t duration) {