Added a debug info UI for Blimp

blimp/client/app/android/blimp_client_session_android.h

Index: blimp/client/app/android/blimp_client_session_android.h
diff --git a/blimp/client/app/android/blimp_client_session_android.h b/blimp/client/app/android/blimp_client_session_android.h
index 345a926810a2cf7355c9c7d81a8e0e010fab4c17..38d14f5281a836bc080b5994272b2c64d2eecf62 100644
--- a/blimp/client/app/android/blimp_client_session_android.h
+++ b/blimp/client/app/android/blimp_client_session_android.h
@@ -6,6 +6,7 @@
 #define BLIMP_CLIENT_APP_ANDROID_BLIMP_CLIENT_SESSION_ANDROID_H_
 
 #include "base/android/jni_android.h"
+#include "base/android/jni_array.h"
 #include "base/macros.h"
 #include "blimp/client/session/blimp_client_session.h"
 
@@ -33,6 +34,12 @@ class BlimpClientSessionAndroid : public BlimpClientSession {
 
   void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& jobj);
 
+  // Returns an integer array to Java representing blimp debug statistics which
+  // contain bytes received, bytes sent, number of commits in order.
+  base::android::ScopedJavaLocalRef<jintArray> GetDebugInfo(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& jobj);
+
  private:
   ~BlimpClientSessionAndroid() override;