Remove legacy StartsWithASCII function.

gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
index 276cb7ded575eea858ee991c09a4e76cdc770bcc..66da9502d9de99ba1567158e056f739ba8e40312 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
@@ -63,7 +63,8 @@ void NormalizeInitState(gpu::gles2::GLES2DecoderTestBase::InitState* init) {
       return;
     if (!init->extensions.empty())
       init->extensions += " ";
-    if (base::StartsWithASCII(init->gl_version, "opengl es", false)) {
+    if (base::StartsWith(init->gl_version, "opengl es",
+                         base::CompareCase::INSENSITIVE_ASCII)) {
       init->extensions += kVAOExtensions[0];
     } else {
 #if !defined(OS_MACOSX)