Don't trigger Phishguard pings if we cannot compute URL reputation.

components/safe_browsing/password_protection/password_protection_request.h

Index: components/safe_browsing/password_protection/password_protection_request.h
diff --git a/components/safe_browsing/password_protection/password_protection_request.h b/components/safe_browsing/password_protection/password_protection_request.h
index 4995b3d4c3ea09db84a194db39e06d9500023187..89fcf772f4106149d7f3a54b8968350b20fcfc67 100644
--- a/components/safe_browsing/password_protection/password_protection_request.h
+++ b/components/safe_browsing/password_protection/password_protection_request.h
@@ -40,7 +40,8 @@ class PasswordProtectionRequest : public base::RefCountedThreadSafe<
                                       content::BrowserThread::DeleteOnUIThread>,
                                   public net::URLFetcherDelegate {
  public:
-  PasswordProtectionRequest(const GURL& main_frame_url,
+  PasswordProtectionRequest(content::WebContents* web_contents,
+                            const GURL& main_frame_url,
                             const GURL& password_form_action,
                             const GURL& password_form_frame_url,
                             const std::string& saved_domain,
@@ -103,6 +104,9 @@ class PasswordProtectionRequest : public base::RefCountedThreadSafe<
   void Finish(PasswordProtectionService::RequestOutcome outcome,
               std::unique_ptr<LoginReputationClientResponse> response);
 
+  // WebContents of the password protection event.
+  content::WebContents* web_contents_;
+
   // Main frame URL of the login form.
   const GURL main_frame_url_;
 
@@ -128,10 +132,6 @@ class PasswordProtectionRequest : public base::RefCountedThreadSafe<
   // Can only be accessed on UI thread.
   PasswordProtectionService* password_protection_service_;
 
-  // Safe Browsing database manager used to look up CSD whitelist.
-  // Can only be accessed on IO thread.
-  scoped_refptr<SafeBrowsingDatabaseManager> database_manager_;
-
   // If we haven't receive response after this period of time, we cancel this
   // request.
   const int request_timeout_in_ms_;