iwyu: Include stringprintf.h where appropriate, part 1.

chrome/browser/debugger/devtools_http_protocol_handler.cc

Index: chrome/browser/debugger/devtools_http_protocol_handler.cc
diff --git a/chrome/browser/debugger/devtools_http_protocol_handler.cc b/chrome/browser/debugger/devtools_http_protocol_handler.cc
index 6e55da082697a08f995cf2543b2f3a97737de27d..90e95e08c5a376f132a631369544204131fd2b5d 100644
--- a/chrome/browser/debugger/devtools_http_protocol_handler.cc
+++ b/chrome/browser/debugger/devtools_http_protocol_handler.cc
@@ -10,6 +10,7 @@
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/message_loop_proxy.h"
+#include "base/stringprintf.h"
 #include "base/string_number_conversions.h"
 #include "base/threading/thread.h"
 #include "base/utf_string_conversions.h"
@@ -152,11 +153,11 @@ void DevToolsHttpProtocolHandler::OnHttpRequest(
 
   net::URLRequest* request;
 
-  if (info.path.find("/devtools/") == 0)
+  if (info.path.find("/devtools/") == 0) {
     request = new net::URLRequest(GURL("chrome-devtools:/" + info.path), this);
-  else if (info.path.find("/thumb/") == 0)
+  } else if (info.path.find("/thumb/") == 0) {
     request = new net::URLRequest(GURL("chrome:/" + info.path), this);
-  else {
+  } else {
     server_->Send404(connection_id);
     return;
   }