Remove some legacy versions of StartsWith and EndsWith.

components/devtools_http_handler/devtools_http_handler.cc

Index: components/devtools_http_handler/devtools_http_handler.cc
diff --git a/components/devtools_http_handler/devtools_http_handler.cc b/components/devtools_http_handler/devtools_http_handler.cc
index 0080f68825ad3a7768a9b2b68d12dacf8abb90e3..40f7edc83b41e3a2fae59c0408d644bf7f788272 100644
--- a/components/devtools_http_handler/devtools_http_handler.cc
+++ b/components/devtools_http_handler/devtools_http_handler.cc
@@ -359,17 +359,22 @@ static std::string PathWithoutParams(const std::string& path) {
 }
 
 static std::string GetMimeType(const std::string& filename) {
-  if (base::EndsWith(filename, ".html", false)) {
+  if (base::EndsWith(filename, ".html", base::CompareCase::INSENSITIVE_ASCII)) {
     return "text/html";
-  } else if (base::EndsWith(filename, ".css", false)) {
+  } else if (base::EndsWith(filename, ".css",
+                            base::CompareCase::INSENSITIVE_ASCII)) {
     return "text/css";
-  } else if (base::EndsWith(filename, ".js", false)) {
+  } else if (base::EndsWith(filename, ".js",
+                            base::CompareCase::INSENSITIVE_ASCII)) {
     return "application/javascript";
-  } else if (base::EndsWith(filename, ".png", false)) {
+  } else if (base::EndsWith(filename, ".png",
+                            base::CompareCase::INSENSITIVE_ASCII)) {
     return "image/png";
-  } else if (base::EndsWith(filename, ".gif", false)) {
+  } else if (base::EndsWith(filename, ".gif",
+                            base::CompareCase::INSENSITIVE_ASCII)) {
     return "image/gif";
-  } else if (base::EndsWith(filename, ".json", false)) {
+  } else if (base::EndsWith(filename, ".json",
+                            base::CompareCase::INSENSITIVE_ASCII)) {
     return "application/json";
   }
   LOG(ERROR) << "GetMimeType doesn't know mime type for: "