Introducing a net::GenerateMimeMultipartBoundary helper.

chrome/browser/chromeos/policy/upload_job_unittest.cc

Index: chrome/browser/chromeos/policy/upload_job_unittest.cc
diff --git a/chrome/browser/chromeos/policy/upload_job_unittest.cc b/chrome/browser/chromeos/policy/upload_job_unittest.cc
index fffbabe251be19ac5105431fbffaee2867af0086..4bf149bf3cceff72cdb2fd6a7cd6079b85d396f1 100644
--- a/chrome/browser/chromeos/policy/upload_job_unittest.cc
+++ b/chrome/browser/chromeos/policy/upload_job_unittest.cc
@@ -48,8 +48,9 @@ class RepeatingMimeBoundaryGenerator
   ~RepeatingMimeBoundaryGenerator() override {}
 
   // MimeBoundaryGenerator:
-  std::string GenerateBoundary(size_t length) const override {
-    return std::string(length, character_);
+  std::string GenerateBoundary() const override {
+    const int kMimeBoundarySize = 32;
+    return std::string(kMimeBoundarySize, character_);
   }
 
  private: