Merge "Add a GetMappedPackageLength to Updater"

am: 5135d1f095

Change-Id: I8368d36e84ba29f5f0bc88e89bcb606932d47a7a

edify/include/edify/updater_interface.h

@@ -44,4 +44,5 @@ class UpdaterInterface {
   virtual ZipArchiveHandle GetPackageHandle() const = 0;
   virtual std::string GetResult() const = 0;
   virtual uint8_t* GetMappedPackageAddress() const = 0;
+  virtual size_t GetMappedPackageLength() const = 0;
 };

updater/include/updater/updater.h

@@ -62,10 +62,12 @@ class Updater : public UpdaterInterface {
   std::string GetResult() const override {
     return result_;
   }
-
   uint8_t* GetMappedPackageAddress() const override {
     return mapped_package_.addr;
   }
+  size_t GetMappedPackageLength() const override {
+    return mapped_package_.length;
+  }
 
  private:
   friend class UpdaterTestBase;