Refactor context creation parameters into a struct.

gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc b/gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc
index 6636439457a6512683be6e53f0f6e97d3e926041..c81e60f7e92767c69351b5ac3045e784faa34ace 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_passthrough.cc
@@ -158,7 +158,10 @@ bool GLES2DecoderPassthroughImpl::Initialize(
   }
 
   // Check for required extensions
-  if (!feature_info_->feature_flags().angle_robust_client_memory) {
+  if (!feature_info_->feature_flags().angle_robust_client_memory ||
+      !feature_info_->feature_flags().chromium_bind_generates_resource ||
+      (feature_info_->IsWebGLContext() !=
+       feature_info_->feature_flags().angle_webgl_compatibility)) {
     Destroy(true);
     return false;
   }
@@ -273,7 +276,11 @@ gpu::Capabilities GLES2DecoderPassthroughImpl::GetCapabilities() {
 
   PopulateNumericCapabilities(&caps, feature_info_.get());
 
-  caps.bind_generates_resource_chromium = group_->bind_generates_resource();
+  glGetIntegerv(GL_BIND_GENERATES_RESOURCE_CHROMIUM,
+                &caps.bind_generates_resource_chromium);
+  DCHECK_EQ(caps.bind_generates_resource_chromium != GL_FALSE,
+            group_->bind_generates_resource());
+
   caps.egl_image_external =
       feature_info_->feature_flags().oes_egl_image_external;
   caps.texture_format_astc =