Fix a bug, and protect against an unrelated class of bugs.

If the Java array allocation in InetAddress.cpp failed, we'd free NULL instead of the
previously-allocated structure. This is a new bug in froyo, but only happens in out of
memory situations, so doesn't seem worth fixing there.

Unrelatedly, let's disallow assignment and copying of all our RAII classes. This isn't
a mistake I've seen made, but it's easy to protect against, so we may as well do so
consistently.

Change-Id: I2433b31ff983d388788b09e59e08d661f1725ecd
diff --git a/icu/src/main/native/ScopedJavaUnicodeString.h b/icu/src/main/native/ScopedJavaUnicodeString.h
index 44952b4..69726fb 100644
--- a/icu/src/main/native/ScopedJavaUnicodeString.h
+++ b/icu/src/main/native/ScopedJavaUnicodeString.h
@@ -46,6 +46,10 @@
     jstring mString;
     const UChar* mChars;
     UnicodeString mUnicodeString;
+
+    // Disallow copy and assignment.
+    ScopedJavaUnicodeString(const ScopedJavaUnicodeString&);
+    void operator=(const ScopedJavaUnicodeString&);
 };
 
 #endif  // SCOPED_JAVA_UNICODE_STRING_H_included