Expose GL_VENDOR/GL_RENDERER strings to internal clients of GPU command buffer.

gpu/command_buffer/tests/gl_unittest.cc

Index: gpu/command_buffer/tests/gl_unittest.cc
diff --git a/gpu/command_buffer/tests/gl_unittest.cc b/gpu/command_buffer/tests/gl_unittest.cc
index cd9373e2ce00666ee6f1c3b5d7320f9998c45df5..344e888d93f69ff195ba904b6ac557a19ae5dabd 100644
--- a/gpu/command_buffer/tests/gl_unittest.cc
+++ b/gpu/command_buffer/tests/gl_unittest.cc
@@ -133,13 +133,6 @@ TEST_F(GLTest, GetString) {
   EXPECT_STREQ(
       "OpenGL ES GLSL ES 1.0 Chromium",
       reinterpret_cast<const char*>(glGetString(GL_SHADING_LANGUAGE_VERSION)));
-  EXPECT_STREQ(
-      "Chromium",
-      reinterpret_cast<const char*>(glGetString(GL_RENDERER)));
-  EXPECT_STREQ(
-      "Chromium",
-      reinterpret_cast<const char*>(glGetString(GL_VENDOR)));
 }
 
 }  // namespace gpu
-