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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 /extensions/common/matcher/substring_set_matcher_unittest.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 'extensions/common/matcher/substring_set_matcher_unittest.cc')
-rw-r--r--extensions/common/matcher/substring_set_matcher_unittest.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/extensions/common/matcher/substring_set_matcher_unittest.cc b/extensions/common/matcher/substring_set_matcher_unittest.cc
index 4152ff9..fde65bf 100644
--- a/extensions/common/matcher/substring_set_matcher_unittest.cc
+++ b/extensions/common/matcher/substring_set_matcher_unittest.cc
@@ -117,7 +117,7 @@ TEST(SubstringSetMatcherTest, TestMatcher) {
// String abcde
// Pattern 1
// Pattern 2 abcdef
- TestTwoPatterns("abcde", "", "abcdef", true, false);
+ TestTwoPatterns("abcde", std::string(), "abcdef", true, false);
}
TEST(SubstringSetMatcherTest, RegisterAndRemove) {