Remove unsafe mode to enable es3 api by default for WebGL2 and ES3 context

gpu/command_buffer/service/feature_info.h

Index: gpu/command_buffer/service/feature_info.h
diff --git a/gpu/command_buffer/service/feature_info.h b/gpu/command_buffer/service/feature_info.h
index 750c816ad77b31d2205a8517fc6ba238d6893270..c9931138beaf6e854a4d26bad5061dfdb18972af 100644
--- a/gpu/command_buffer/service/feature_info.h
+++ b/gpu/command_buffer/service/feature_info.h
@@ -144,7 +144,15 @@ class GPU_EXPORT FeatureInfo : public base::RefCounted<FeatureInfo> {
   void EnableES3Validators();
 
   bool IsES3Enabled() const {
-    return unsafe_es3_apis_enabled_;
+    return es3_apis_enabled_;
+  }
+
+  void SetES3APIsSwitch(bool enabled) {
+    enable_es3_apis_switch_ = enabled;
+  }
+
+  bool GetES3APIsSwitch() const {
+    return enable_es3_apis_switch_;
   }
 
   bool disable_shader_translator() const { return disable_shader_translator_; }
@@ -193,9 +201,10 @@ class GPU_EXPORT FeatureInfo : public base::RefCounted<FeatureInfo> {
   const GpuDriverBugWorkarounds workarounds_;
 
   // Whether the command line switch kEnableUnsafeES3APIs is passed in.
-  bool enable_unsafe_es3_apis_switch_;
+  // bool enable_unsafe_es3_apis_switch_;
 
-  bool unsafe_es3_apis_enabled_;
+  bool es3_apis_enabled_;
+  bool enable_es3_apis_switch_;
 
   bool chromium_color_buffer_float_rgba_available_;
   bool chromium_color_buffer_float_rgb_available_;