Validate hash_sha256 checksum on .crx update.

chrome/browser/extensions/crx_installer.cc

Index: chrome/browser/extensions/crx_installer.cc
diff --git a/chrome/browser/extensions/crx_installer.cc b/chrome/browser/extensions/crx_installer.cc
index a4207e715595fe57a8cbf7d4423bc63bc3a153c1..17cc1a9538eb4ce3ed9a958272fa56407e90c8ca 100644
--- a/chrome/browser/extensions/crx_installer.cc
+++ b/chrome/browser/extensions/crx_installer.cc
@@ -170,13 +170,17 @@ CrxInstaller::~CrxInstaller() {
 }
 
 void CrxInstaller::InstallCrx(const base::FilePath& source_file) {
+  InstallCrxFile(CRXFileInfo(source_file));
+}
+
+void CrxInstaller::InstallCrxFile(const CRXFileInfo& source_file) {
   ExtensionService* service = service_weak_.get();
   if (!service || service->browser_terminating())
     return;
 
   NotifyCrxInstallBegin();
 
-  source_file_ = source_file;
+  source_file_ = source_file.path;
 
   scoped_refptr<SandboxedUnpacker> unpacker(
       new SandboxedUnpacker(source_file,