Add CONTEXT_TYPE_OPENGLES2_PEPPER

cc/output/gl_renderer.cc

 // Copyright 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/output/gl_renderer.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 355 matching lines @@
 
   // The updater can access textures while the GLRenderer is using them.
   capabilities_.allow_partial_texture_updates = true;
 
   capabilities_.using_image = context_caps.gpu.image;
 
   capabilities_.using_discard_framebuffer =
       context_caps.gpu.discard_framebuffer;
 
   capabilities_.allow_rasterize_on_demand = true;
-  capabilities_.max_msaa_samples = context_caps.gpu.max_samples;
+
+  // If MSAA is slow, we want this renderer to behave as though MSAA is not
+  // available. Set samples to 0 to achieve this.
+  if (context_caps.gpu.msaa_is_slow)
+    capabilities_.max_msaa_samples = 0;
+  else
+    capabilities_.max_msaa_samples = context_caps.gpu.max_samples;
 
   use_sync_query_ = context_caps.gpu.sync_query;
   use_blend_equation_advanced_ = context_caps.gpu.blend_equation_advanced;
   use_blend_equation_advanced_coherent_ =
       context_caps.gpu.blend_equation_advanced_coherent;
 
   InitializeSharedObjects();
 }
 
 GLRenderer::~GLRenderer() {
@@ skipping 3257 matching lines @@
       texture_id = pending_overlay_resources_.back()->texture_id();
     }
 
     context_support_->ScheduleOverlayPlane(
         overlay.plane_z_order, overlay.transform, texture_id,
         ToNearestRect(overlay.display_rect), overlay.uv_rect);
   }
 }
 
 }  // namespace cc