Add JavaBoundObject

base/android/jni_android.h

Index: base/android/jni_android.h
diff --git a/base/android/jni_android.h b/base/android/jni_android.h
index 66b3134e35d2b271760c2d9a19952c6affb15b97..7ddcdb763d2b030a914e7ad987d7b53d50768602 100644
--- a/base/android/jni_android.h
+++ b/base/android/jni_android.h
@@ -8,6 +8,8 @@
 #include <jni.h>
 #include <sys/types.h>
 
+#include "base/android/scoped_java_ref.h"
+
 namespace base {
 namespace android {
 
@@ -30,6 +32,15 @@ void InitApplicationContext(jobject context);
 // Returns the application context assigned by InitApplicationContext().
 jobject GetApplicationContext();
 
+// Get the method ID for a method, from the class name. Will clear the pending
+// Java exception and return 0 if the method is not found. Note that
+// GetMethodID() below avoids a class lookup, so should be used in preference
+// when possible.
+jmethodID GetMethodIDFromClassName(JNIEnv* env,
+                                   const char* const class_name,
+                                   const char* const method,
+                                   const char* const jni_signature);
+
 // Get the method ID for a method. Will clear the pending Java
 // exception and return 0 if the method is not found.
 jmethodID GetMethodID(JNIEnv* env,
@@ -44,8 +55,15 @@ jmethodID GetStaticMethodID(JNIEnv* env,
                             const char* const method,
                             const char* const jni_signature);
 
+// Get the field ID for a class field. Will clear the pending Java
+// exception and return 0 if the field is not found.
+jfieldID GetFieldID(JNIEnv* env,
+                    jclass clazz,
+                    const char* const field,
+                    const char* const jni_signature);
+
 // Returns true if an exception is pending in the provided JNIEnv*.
-// If an exception is pending, it is printed.
+// If an exception is pending, it is printed and cleared.
 bool CheckException(JNIEnv* env);
 
 }  // namespace android