Do not initialize std::string to empty string.

Clean up base, chrome, and content. Do the same for base::string16 and
std::wstring.

Change-Id: If513d114ac0fee151f9ae2f21261c477761b7a3c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2181525
Commit-Queue: Lei Zhang <[email protected]>
Reviewed-by: Avi Drissman <[email protected]>
Cr-Commit-Position: refs/heads/master@{#765751}
diff --git a/chrome/browser/shell_integration_linux.cc b/chrome/browser/shell_integration_linux.cc
index 8f8f6b8..45de05f87 100644
--- a/chrome/browser/shell_integration_linux.cc
+++ b/chrome/browser/shell_integration_linux.cc
@@ -234,7 +234,7 @@
     const base::CommandLine& command_line) {
   // http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s06.html
 
-  std::string quoted_path = "";
+  std::string quoted_path;
   const base::CommandLine::StringVector& argv = command_line.argv();
   for (auto i = argv.begin(); i != argv.end(); ++i) {
     if (i != argv.begin())