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authordcheng@chromium.org <dcheng@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-04-09 05:45:17 +0000
committerdcheng@chromium.org <dcheng@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-04-09 05:45:17 +0000
commite59558b78e8c6a1b0bd916a724724b638c3c91b6 (patch)
tree712268a7e9e1cd552f309d89641b2bed5ad06322 /net/server/http_server_request_info.cc
parent31fcd34da3797bc49160620ef8c94a38652c0587 (diff)
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Rewrite std::string("") to std::string(), Linux edition.
This patch was generated by running the empty_string clang tool across the Chromium Linux compilation database. Implicitly or explicitly constructing std::string() with a "" argument is inefficient as the caller needs to emit extra instructions to pass an argument, and the constructor needlessly copies a byte into internal storage. Rewriting these instances to simply call the default constructor appears to save ~14-18 kilobytes on an optimized release build. BUG=none Review URL: https://codereview.chromium.org/13145003 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@193020 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'net/server/http_server_request_info.cc')
-rw-r--r--net/server/http_server_request_info.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/server/http_server_request_info.cc b/net/server/http_server_request_info.cc
index eda597a..08b925f 100644
--- a/net/server/http_server_request_info.cc
+++ b/net/server/http_server_request_info.cc
@@ -16,7 +16,7 @@ std::string HttpServerRequestInfo::GetHeaderValue(
headers.find(header_name);
if (it != headers.end())
return it->second;
- return "";
+ return std::string();
}
} // namespace net