bluetooth: android: Record GATT status codes UMA.

device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothDevice.java

Index: device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothDevice.java
diff --git a/device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothDevice.java b/device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothDevice.java
index 2741e7c6e44492fb4269e1da1f44f363075beb32..00b00b1864955c630b734b8d14d31434c81321f9 100644
--- a/device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothDevice.java
+++ b/device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothDevice.java
@@ -14,6 +14,7 @@ import org.chromium.base.Log;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
+import org.chromium.base.metrics.RecordHistogram;
 
 import java.util.HashMap;
 import java.util.HashSet;
@@ -153,12 +154,21 @@ final class ChromeBluetoothDevice {
                             ? "Connected"
                             : "Disconnected");
             if (newState == android.bluetooth.BluetoothProfile.STATE_CONNECTED) {
+                RecordHistogram.recordSparseSlowlyHistogram(
+                        "Bluetooth.Web.Android.onConnectionStateChange.Status.Connected", status);
                 mBluetoothGatt.discoverServices();
             } else if (newState == android.bluetooth.BluetoothProfile.STATE_DISCONNECTED) {
+                RecordHistogram.recordSparseSlowlyHistogram(
+                        "Bluetooth.Web.Android.onConnectionStateChange.Status.Disconnected",
+                        status);
                 if (mBluetoothGatt != null) {
                     mBluetoothGatt.close();
                     mBluetoothGatt = null;
                 }
+            } else {
+                RecordHistogram.recordSparseSlowlyHistogram(
+                        "Bluetooth.Web.Android.onConnectionStateChange.Status.InvalidState",
+                        status);
             }
             ThreadUtils.runOnUiThread(new Runnable() {
                 @Override
@@ -179,11 +189,19 @@ final class ChromeBluetoothDevice {
                 @Override
                 public void run() {
                     if (mNativeBluetoothDeviceAndroid != 0) {
-                        // When the device disconnects is deletes
+                        // When the device disconnects it deletes
                         // mBluetoothGatt, so we need to check it's not null.
                         if (mBluetoothGatt == null) {
+                            RecordHistogram.recordSparseSlowlyHistogram(
+                                    "Bluetooth.Web.Android.onServicesDiscovered.Status."
+                                            + "Disconnected",
+                                    status);
                             return;
                         }
+                        RecordHistogram.recordSparseSlowlyHistogram(
+                                "Bluetooth.Web.Android.onServicesDiscovered.Status.Connected",
+                                status);
+
                         // TODO(crbug.com/576906): Update or replace existing GATT objects if they
                         //                         change after initial discovery.
                         for (Wrappers.BluetoothGattServiceWrapper service :
@@ -235,6 +253,8 @@ final class ChromeBluetoothDevice {
                         // when the event races object destruction.
                         Log.v(TAG, "onCharacteristicRead when chromeCharacteristic == null.");
                     } else {
+                        RecordHistogram.recordSparseSlowlyHistogram(
+                                "Bluetooth.Web.Android.onCharacteristicRead.Status", status);
                         chromeCharacteristic.onCharacteristicRead(status);
                     }
                 }
@@ -255,6 +275,8 @@ final class ChromeBluetoothDevice {
                         // when the event races object destruction.
                         Log.v(TAG, "onCharacteristicWrite when chromeCharacteristic == null.");
                     } else {
+                        RecordHistogram.recordSparseSlowlyHistogram(
+                                "Bluetooth.Web.Android.onCharacteristicWrite.Status", status);
                         chromeCharacteristic.onCharacteristicWrite(status);
                     }
                 }
@@ -274,6 +296,8 @@ final class ChromeBluetoothDevice {
                         // when the event races object destruction.
                         Log.v(TAG, "onDescriptorRead when chromeDescriptor == null.");
                     } else {
+                        RecordHistogram.recordSparseSlowlyHistogram(
+                                "Bluetooth.Web.Android.onDescriptorRead.Status", status);
                         chromeDescriptor.onDescriptorRead(status);
                     }
                 }
@@ -293,6 +317,8 @@ final class ChromeBluetoothDevice {
                         // when the event races object destruction.
                         Log.v(TAG, "onDescriptorWrite when chromeDescriptor == null.");
                     } else {
+                        RecordHistogram.recordSparseSlowlyHistogram(
+                                "Bluetooth.Web.Android.onDescriptorWrite.Status", status);
                         chromeDescriptor.onDescriptorWrite(status);
                     }
                 }