resourcemanager: add resource metrics to dumpsys

Bug: 335662059
Test: atest android.media.misc.cts.ResourceManagerTest
      atest android.media.misc.cts.ResourceManagerMultiTest
      /data/nativetest64/ResourceManagerService_test/ResourceManagerService_test
      /data/nativetest64/ResourceObserverService_test/ResourceObserverService_test
      adb shell dumpsys media.resource_manager
Change-Id: I0e5b59b9e65a4ac0b07e9f23ada7df67b13d82fd
diff --git a/services/mediaresourcemanager/ResourceManagerService.cpp b/services/mediaresourcemanager/ResourceManagerService.cpp
index d37d893..9c2fb7c 100644
--- a/services/mediaresourcemanager/ResourceManagerService.cpp
+++ b/services/mediaresourcemanager/ResourceManagerService.cpp
@@ -108,10 +108,17 @@
         serviceLog = mServiceLog->toString("    " /* linePrefix */);
     }
 
-    // Get all the resource (and overload pid) logs
+    // Get all the resource (and overload pid) log.
     std::string resourceLog;
     getResourceDump(resourceLog);
 
+    // Get all the metrics log.
+    std::string metricsLog;
+    {
+        std::scoped_lock lock{mLock};
+        metricsLog = mResourceManagerMetrics->dump();
+    }
+
     const size_t SIZE = 256;
     char buffer[SIZE];
     snprintf(buffer, SIZE, "ResourceManagerService: %p\n", this);
@@ -123,11 +130,16 @@
             supportsSecureWithNonSecureCodec);
     result.append(buffer);
 
+    // Add resource log.
     result.append(resourceLog.c_str());
 
+    // Add service log.
     result.append("  Events logs (most recent at top):\n");
     result.append(serviceLog);
 
+    // Add metrics log.
+    result.append(metricsLog.c_str());
+
     write(fd, result.c_str(), result.size());
     return OK;
 }