Removed --use-gl=osmesa as default for ui and browser tests....

chrome/test/test_launcher_utils.h

Index: chrome/test/test_launcher_utils.h
===================================================================
--- chrome/test/test_launcher_utils.h	(revision 65684)
+++ chrome/test/test_launcher_utils.h	(working copy)
@@ -21,6 +21,11 @@
 // Overrides the current process' user data dir.
 bool OverrideUserDataDir(const FilePath& user_data_dir) WARN_UNUSED_RESULT;
 
+// Override the GL implementation. The names are the same as for the --use-gl
+// command line switch. Use the constants in the gfx namespace.
+void OverrideGLImplementation(CommandLine* command_line,
+                              const char* implementation_name);
+
 }  // namespace test_launcher_utils
 
 #endif  // CHROME_TEST_TEST_LAUNCHER_UTILS_H_