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

content/test/content_test_suite.cc

Index: content/test/content_test_suite.cc
diff --git a/content/test/content_test_suite.cc b/content/test/content_test_suite.cc
index 0feb36192fa148a53a59111758ccb07f0af6b73e..18a116f3e0a42765c0c6a45baf09074e30cea38e 100644
--- a/content/test/content_test_suite.cc
+++ b/content/test/content_test_suite.cc
@@ -125,10 +125,10 @@ void ContentTestSuite::Initialize() {
   media::InitializeMediaLibraryForTesting();
   // When running in a child process for Mac sandbox tests, the sandbox exists
   // to initialize GL, so don't do it here.
-  if (!CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kTestChildProcess)) {
+  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kTestChildProcess)) {
     gfx::GLSurface::InitializeOneOffForTests();
-    gpu::ApplyGpuDriverBugWorkarounds(CommandLine::ForCurrentProcess());
+    gpu::ApplyGpuDriverBugWorkarounds(base::CommandLine::ForCurrentProcess());
   }
 #endif
   testing::TestEventListeners& listeners =