Check in protobuf java code and generate lite jar.

third_party/protobuf/java/src/main/java/com/google/protobuf/MessageLiteOrBuilder.java

Index: third_party/protobuf/java/src/main/java/com/google/protobuf/MessageLiteOrBuilder.java
diff --git a/third_party/protobuf/python/google/protobuf/internal/more_messages.proto b/third_party/protobuf/java/src/main/java/com/google/protobuf/MessageLiteOrBuilder.java
similarity index 62%
copy from third_party/protobuf/python/google/protobuf/internal/more_messages.proto
copy to third_party/protobuf/java/src/main/java/com/google/protobuf/MessageLiteOrBuilder.java
index c701b4460b761a7f9db44e1159a1aadf7206a64a..7cc72e9cb5cfd5ab44fd6df4ce6de4ca48fd573f 100644
--- a/third_party/protobuf/python/google/protobuf/internal/more_messages.proto
+++ b/third_party/protobuf/java/src/main/java/com/google/protobuf/MessageLiteOrBuilder.java
@@ -28,24 +28,31 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Author: robinson@google.com (Will Robinson)
+package com.google.protobuf;
 
+/**
+ * Base interface for methods common to {@link MessageLite}
+ * and {@link MessageLite.Builder} to provide type equivalency.
+ *
+ * @author jonp@google.com (Jon Perlow)
+ */
+public interface MessageLiteOrBuilder {
+  /**
+   * Get an instance of the type with no fields set. Because no fields are set,
+   * all getters for singular fields will return default values and repeated
+   * fields will appear empty.
+   * This may or may not be a singleton.  This differs from the
+   * {@code getDefaultInstance()} method of generated message classes in that
+   * this method is an abstract method of the {@code MessageLite} interface
+   * whereas {@code getDefaultInstance()} is a static method of a specific
+   * class.  They return the same thing.
+   */
+  MessageLite getDefaultInstanceForType();
 
-package google.protobuf.internal;
+  /**
+   * Returns true if all required fields in the message and all embedded
+   * messages are set, false otherwise.
+   */
+  boolean isInitialized();
 
-// A message where tag numbers are listed out of order, to allow us to test our
-// canonicalization of serialized output, which should always be in tag order.
-// We also mix in some extensions for extra fun.
-message OutOfOrderFields {
-  optional   sint32 optional_sint32   =  5;
-  extensions 4 to 4;
-  optional   uint32 optional_uint32   =  3;
-  extensions 2 to 2;
-  optional    int32 optional_int32    =  1;
-};
-
-
-extend OutOfOrderFields {
-  optional   uint64 optional_uint64   =  4;
-  optional    int64 optional_int64    =  2;
 }