Fix content verification code for undreadable and deleted files.

extensions/browser/content_verify_job.h

Index: extensions/browser/content_verify_job.h
diff --git a/extensions/browser/content_verify_job.h b/extensions/browser/content_verify_job.h
index 15c983ee322fdc1b666f0715115b98c1271f4426..cb7b7e0a8f82fdb898382aa241447543208a42e2 100644
--- a/extensions/browser/content_verify_job.h
+++ b/extensions/browser/content_verify_job.h
@@ -72,6 +72,8 @@ class ContentVerifyJob : public base::RefCountedThreadSafe<ContentVerifyJob> {
 
   class TestDelegate {
    public:
+    virtual ~TestDelegate() {}
+
     // These methods will be called inside BytesRead/DoneReading respectively.
     // If either return something other than NONE, then the failure callback
     // will be dispatched with that reason.
@@ -88,7 +90,7 @@ class ContentVerifyJob : public base::RefCountedThreadSafe<ContentVerifyJob> {
 
     virtual void JobFinished(const std::string& extension_id,
                              const base::FilePath& relative_path,
-                             bool failed) = 0;
+                             FailureReason failure_reason) = 0;
   };
 
   // Note: having interleaved delegates is not supported.