refactor: replace base::StringPrintf() calls with absl::StrFormat() (#44515)

refactor: replace base::StringPrintf() calls with absl::StFormat()

The former is now a pass-through for the latter and is slated for removal

Xref: https://issues.chromium.org/issues/40241565

4907781

shell/browser/net/proxying_url_loader_factory.cc

@@ -11,7 +11,6 @@
 #include "base/functional/bind.h"
 #include "base/functional/callback_helpers.h"
 #include "base/strings/string_split.h"
-#include "base/strings/stringprintf.h"
 #include "content/public/browser/browser_context.h"
 #include "extensions/browser/extension_navigation_ui_data.h"
 #include "net/base/completion_repeating_callback.h"
@@ -25,6 +24,7 @@
 #include "services/network/public/mojom/url_response_head.mojom.h"
 #include "shell/browser/net/asar/asar_url_loader.h"
 #include "shell/common/options_switches.h"
+#include "third_party/abseil-cpp/absl/strings/str_format.h"
 #include "url/origin.h"
 
 namespace electron {
@@ -400,7 +400,7 @@ void ProxyingURLLoaderFactory::InProgressRequest::
       net::SiteForCookies::FromUrl(redirect_url_);
 
   auto head = network::mojom::URLResponseHead::New();
-  std::string headers = base::StringPrintf(
+  std::string headers = absl::StrFormat(
       "HTTP/1.1 %i Internal Redirect\n"
       "Location: %s\n"
       "Non-Authoritative-Reason: WebRequest API\n\n",