Bug 1699646 - Add Android device information to the profile meta object r=geckoview-reviewers,agi,gerald,julienw

Differential Revision: https://phabricator.services.mozilla.com/D109408

mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoJavaSampler.java

@@ -5,6 +5,7 @@
 
 package org.mozilla.gecko;
 
+import android.os.Build;
 import android.os.Looper;
 import android.os.SystemClock;
 import android.util.Log;
@@ -446,4 +447,15 @@ public class GeckoJavaSampler {
             sMarkerStorage.stop();
         }
     }
+
+    /**
+     * Returns the device brand and model as a string.
+     */
+    @WrapForJNI
+    public static String getDeviceInformation() {
+        final StringBuilder sb = new StringBuilder(Build.BRAND);
+        sb.append(" ");
+        sb.append(Build.MODEL);
+        return sb.toString();
+    }
 }

tools/profiler/core/platform.cpp

@@ -2636,6 +2636,12 @@ static void StreamMetaJSCustomObject(
                         aPreRecordedMetaInformation.mProcessInfoCpuCount);
   }
 
+#if defined(GP_OS_android)
+  jni::String::LocalRef deviceInformation =
+      java::GeckoJavaSampler::GetDeviceInformation();
+  aWriter.StringProperty("device", deviceInformation->ToCString());
+#endif
+
   aWriter.StartObjectProperty("sampleUnits");
   {
     aWriter.StringProperty("time", "ms");