Make callers of CommandLine use it via the base:: namespace.

Covers chrome/app* and chrome/browser/* through e.

BUG=422426
TEST=none
[email protected]

Review URL: https://codereview.chromium.org/819133004

Cr-Commit-Position: refs/heads/master@{#309476}
diff --git a/chrome/browser/extensions/test_extension_environment.cc b/chrome/browser/extensions/test_extension_environment.cc
index e8d9850..8b5c30e4 100644
--- a/chrome/browser/extensions/test_extension_environment.cc
+++ b/chrome/browser/extensions/test_extension_environment.cc
@@ -53,7 +53,7 @@
 ExtensionService* TestExtensionEnvironment::GetExtensionService() {
   if (extension_service_ == NULL) {
     extension_service_ = GetExtensionSystem()->CreateExtensionService(
-        CommandLine::ForCurrentProcess(), base::FilePath(), false);
+        base::CommandLine::ForCurrentProcess(), base::FilePath(), false);
   }
   return extension_service_;
 }
@@ -61,7 +61,7 @@
 ExtensionPrefs* TestExtensionEnvironment::GetExtensionPrefs() {
   if (extension_prefs_ == NULL) {
     extension_prefs_ = GetExtensionSystem()->CreateExtensionPrefs(
-        CommandLine::ForCurrentProcess(), base::FilePath());
+        base::CommandLine::ForCurrentProcess(), base::FilePath());
   }
   return extension_prefs_;
 }