Update system_profile.proto. Populate app_package_name

Bug: 833214
Change-Id: I5552bdca37a2e3e20a039b9a0ca316f4480b1217
Reviewed-on: https://chromium-review.googlesource.com/1010055
Commit-Queue: Shuo Weng <shuow@google.com>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#551296}

components/metrics/metrics_log.cc

@@ -173,6 +173,10 @@ void MetricsLog::RecordCoreSystemProfile(MetricsServiceClient* client,
 #if defined(OS_ANDROID)
   os->set_build_fingerprint(
       base::android::BuildInfo::GetInstance()->android_build_fp());
+  std::string package_name =
+      base::android::BuildInfo::GetInstance()->package_name();
+  if (package_name != "com.android.chrome")
+    system_profile->set_app_package_name(package_name);
 #endif
 }
 

components/metrics/metrics_log_unittest.cc

@@ -156,6 +156,8 @@ TEST_F(MetricsLogTest, BasicRecord) {
 #if defined(OS_ANDROID)
   system_profile->mutable_os()->set_build_fingerprint(
       base::android::BuildInfo::GetInstance()->android_build_fp());
+  system_profile->set_app_package_name(
+      base::android::BuildInfo::GetInstance()->package_name());
 #endif
 
   // Hard to mock.

third_party/metrics_proto/README.chromium

 Name: Metrics Protos
 Short Name: metrics_proto
 URL: This is the canonical public repository
-Version: 191322814
-Date: 2018/04/02 UTC
+Version: 192562418
+Date: 2018/04/12 UTC
 License: BSD
 Security Critical: Yes
 

third_party/metrics_proto/system_profile.proto

@@ -15,7 +15,7 @@ import "extension_install.proto";
 
 // Stores information about the user's brower and system configuration.
 // The system configuration fields are recorded once per client session.
-// Next tag: 26
+// Next tag: 27
 message SystemProfileProto {
   // The time when the client was compiled/linked, in seconds since the epoch.
   optional int64 build_timestamp = 1;
@@ -972,4 +972,8 @@ message SystemProfileProto {
   // extensions from all fully-initialized profiles. If a single extension is
   // installed in multiple profiles, it will be recorded multiple times.
   repeated ExtensionInstallProto extension_install = 25;
+
+  // The Chrome package name on Android, if it's different from
+  // "com.android.chrome".
+  optional string app_package_name = 26;
 }