Add JavaBoundObject

base/android/jni_android.cc

Index: base/android/jni_android.cc
diff --git a/base/android/jni_android.cc b/base/android/jni_android.cc
index 1dc02afb3b0543fce35b14fcf1fb4401109a4db9..7f9d04b1b3bbd1f32a2d2363e0ffa240497434c5 100644
--- a/base/android/jni_android.cc
+++ b/base/android/jni_android.cc
@@ -4,6 +4,7 @@
 
 #include "base/android/jni_android.h"
 
+#include "base/android/scoped_java_ref.h"
 #include "base/logging.h"
 
 namespace {
@@ -46,6 +47,14 @@ jobject GetApplicationContext() {
   return g_application_context;
 }
 
+jmethodID GetMethodIDFromClassName(JNIEnv* env,
+                                   const char* const class_name,
+                                   const char* const method,
+                                   const char* const jni_signature) {
+  ScopedJavaLocalRef<jclass> clazz(env, env->FindClass(class_name));
+  return GetMethodID(env, clazz.obj(), method, jni_signature);

[joth, 2011/11/11 11:40:38]

this caught me out as I thought you were calling the global c-like GetMethodID,
not the one in this namespace (below), which should probably have been called
GetMethodIDChecked or something.

maybe comment that we call the other one as it handles the exception.

[Steve Block, 2011/11/11 12:22:53]

Done.

+}
+
 jmethodID GetMethodID(JNIEnv* env,
                       jclass clazz,
                       const char* const method,
@@ -66,6 +75,16 @@ jmethodID GetStaticMethodID(JNIEnv* env,
   return id;
 }
 
+jfieldID GetFieldID(JNIEnv* env,
+                    jclass clazz,
+                    const char* const field,
+                    const char* const jni_signature) {
+  jfieldID id = env->GetFieldID(clazz, field, jni_signature);
+  DCHECK(id) << field;
+  CheckException(env);
+  return id;
+}
+
 bool CheckException(JNIEnv* env) {
   if (env->ExceptionCheck() == JNI_FALSE)
     return false;