AU: Class to perform delta updates.

src/platform/update_engine/extent_mapper.cc

Index: src/platform/update_engine/extent_mapper.cc
diff --git a/src/platform/update_engine/extent_mapper.cc b/src/platform/update_engine/extent_mapper.cc
index 4af5f5dad924b5731af9d323f04a8542f350bb9b..e02f5a281693a15e74a5a0247e139ccc97334ce3 100755
--- a/src/platform/update_engine/extent_mapper.cc
+++ b/src/platform/update_engine/extent_mapper.cc
@@ -58,14 +58,14 @@ bool ExtentsForFileFibmap(const std::string& path, std::vector<Extent>* out) {
     rc = ioctl(fd, FIBMAP, &block32);
     TEST_AND_RETURN_FALSE_ERRNO(rc == 0);
     
-    const uint64 block = (block32 == 0 ? kSparseHole : block32);
+    const uint64_t block = (block32 == 0 ? kSparseHole : block32);
     
     graph_utils::AppendBlockToExtents(out, block);
   }
   return true;
 }
 
-bool GetFilesystemBlockSize(const std::string& path, uint32* out_blocksize) {
+bool GetFilesystemBlockSize(const std::string& path, uint32_t* out_blocksize) {
   int fd = open(path.c_str(), O_RDONLY, 0);
   TEST_AND_RETURN_FALSE_ERRNO(fd >= 0);
   ScopedFdCloser fd_closer(&fd);