Update StartsWith calls to use new versions in chrome and content

chrome/browser/policy/policy_browsertest.cc

Index: chrome/browser/policy/policy_browsertest.cc
diff --git a/chrome/browser/policy/policy_browsertest.cc b/chrome/browser/policy/policy_browsertest.cc
index a4b6255b1ef72610ff12afe4b15d228016dbd7cd..0de2f7f332d9bb7f0c90e8610b0dac829e4ab056 100644
--- a/chrome/browser/policy/policy_browsertest.cc
+++ b/chrome/browser/policy/policy_browsertest.cc
@@ -3780,7 +3780,8 @@ IN_PROC_BROWSER_TEST_F(PolicyVariationsServiceTest, VariationsURLIsValid) {
   const GURL url =
       chrome_variations::VariationsService::GetVariationsServerURL(
           g_browser_process->local_state(), std::string());
-  EXPECT_TRUE(base::StartsWithASCII(url.spec(), default_variations_url, true));
+  EXPECT_TRUE(base::StartsWith(url.spec(), default_variations_url,
+                               base::CompareCase::SENSITIVE));
   std::string value;
   EXPECT_TRUE(net::GetValueForKeyInQuery(url, "restrict", &value));
   EXPECT_EQ("restricted", value);