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author | dcheng@chromium.org <dcheng@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-04-09 05:45:17 +0000 |
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committer | dcheng@chromium.org <dcheng@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-04-09 05:45:17 +0000 |
commit | e59558b78e8c6a1b0bd916a724724b638c3c91b6 (patch) | |
tree | 712268a7e9e1cd552f309d89641b2bed5ad06322 /content/public | |
parent | 31fcd34da3797bc49160620ef8c94a38652c0587 (diff) | |
download | chromium_src-e59558b78e8c6a1b0bd916a724724b638c3c91b6.zip chromium_src-e59558b78e8c6a1b0bd916a724724b638c3c91b6.tar.gz chromium_src-e59558b78e8c6a1b0bd916a724724b638c3c91b6.tar.bz2 |
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 'content/public')
-rw-r--r-- | content/public/test/test_launcher.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/content/public/test/test_launcher.cc b/content/public/test/test_launcher.cc index 40545d5..f4635ec 100644 --- a/content/public/test/test_launcher.cc +++ b/content/public/test/test_launcher.cc @@ -454,7 +454,7 @@ bool RunTests(TestLauncherDelegate* launcher_delegate, // Split --gtest_filter at '-', if there is one, to separate into // positive filter and negative filter portions. std::string positive_filter = filter; - std::string negative_filter = ""; + std::string negative_filter; size_t dash_pos = filter.find('-'); if (dash_pos != std::string::npos) { positive_filter = filter.substr(0, dash_pos); // Everything up to the dash. |