Update protobuf library from 2.3 to 2.6.

Copied in all files from the open source protobuf project at commit
edc5994525c79cd1919859a370837a6ff7c8e308, removing files which have
been renamed (COPYING.txt -> LICENSE, README.txt -> README.md).

Removed 2.3 prebuilts, which is an approach that will not work due to
incompatibility with the 2.6 runtime.

Merged in micro/nano-specific changes in the following files:

-Android.mk - updated list of C++/Java sources, bumped versions
-java/README.txt - merged in micro/nano instructions, bumped versions
-java/pom.xml - merged in micro/nano build rules, set packaging to jar
-src/Makefile.am - merged in references to micro/nano generators
-src/google/protobuf/compiler/javamicro/javamicro_file.h - imported
 google/protobuf/compiler/code_generator.h and removed redundant
 OutputDirectory class.
-src/google/protobuf/compiler/javanano/javanano_file.h - same
-Replaced instances of vector with std::vector as needed to get
 libprotobuf-cpp-full to compile. Plan to upstream this fix per
 discussion with protobuf maintainers.

Reran autogen.sh to update ./configure and associated scripts.

Change-Id: I949d32fb5126f1c05e2a6ed48f6636a4a9b15a48

1 files changed, 14 insertions, 5 deletions

diff --git a/src/google/protobuf/compiler/code_generator.cc b/src/google/protobuf/compiler/code_generator.cc
index 3413a36..bc4800a 100644
--- a/src/google/protobuf/compiler/code_generator.cc
+++ b/src/google/protobuf/compiler/code_generator.cc
@@ -42,19 +42,28 @@ namespace protobuf {
 namespace compiler {
 
 CodeGenerator::~CodeGenerator() {}
-OutputDirectory::~OutputDirectory() {}
+GeneratorContext::~GeneratorContext() {}
 
-io::ZeroCopyOutputStream* OutputDirectory::OpenForInsert(
+io::ZeroCopyOutputStream*
+GeneratorContext::OpenForAppend(const string& filename) {
+  return NULL;
+}
+
+io::ZeroCopyOutputStream* GeneratorContext::OpenForInsert(
     const string& filename, const string& insertion_point) {
-  GOOGLE_LOG(FATAL) << "This OutputDirectory does not support insertion.";
+  GOOGLE_LOG(FATAL) << "This GeneratorContext does not support insertion.";
   return NULL;  // make compiler happy
 }
 
+void GeneratorContext::ListParsedFiles(
+    vector<const FileDescriptor*>* output) {
+  GOOGLE_LOG(FATAL) << "This GeneratorContext does not support ListParsedFiles";
+}
+
 // Parses a set of comma-delimited name/value pairs.
 void ParseGeneratorParameter(const string& text,
                              vector<pair<string, string> >* output) {
-  vector<string> parts;
-  SplitStringUsing(text, ",", &parts);
+  vector<string> parts = Split(text, ",", true);
 
   for (int i = 0; i < parts.size(); i++) {
     string::size_type equals_pos = parts[i].find_first_of('=');