Relax multi-sampling for floating-point color renderbuffers

third_party/WebKit/Source/modules/webgl/WebGL2RenderingContextBase.h

 // Copyright 2015 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.
 
 #ifndef WebGL2RenderingContextBase_h
 #define WebGL2RenderingContextBase_h
 
 #include "modules/webgl/WebGLExtension.h"
 #include "modules/webgl/WebGLRenderingContextBase.h"
 #include <memory>
@@ skipping 261 matching lines @@
     WebGLBuffer* validateBufferDataTarget(const char* functionName, GLenum target) override;
     bool validateBufferDataUsage(const char* functionName, GLenum usage) override;
 
     bool canUseTexImageByGPU(TexImageFunctionID, GLint internalformat, GLenum type) override;
 
     void removeBoundBuffer(WebGLBuffer*) override;
 
     void resetUnpackParameters() override;
     void restoreUnpackParameters() override;
 
+    void callRenderbufferStorage(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, const char* functionName);

[qiankun, 2016/08/02 02:47:55]

FYI: callRenderbufferStorage -> renderbufferStorageHelper?

+
     Member<WebGLFramebuffer> m_readFramebufferBinding;
     Member<WebGLTransformFeedback> m_transformFeedbackBinding;
 
     std::set<GLenum> m_supportedInternalFormatsStorage;
     std::set<GLenum> m_compressedTextureFormatsETC2EAC;
 
     Member<WebGLBuffer> m_boundCopyReadBuffer;
     Member<WebGLBuffer> m_boundCopyWriteBuffer;
     Member<WebGLBuffer> m_boundPixelPackBuffer;
     Member<WebGLBuffer> m_boundPixelUnpackBuffer;
@@ skipping 22 matching lines @@
     ScopedPersistent<v8::Array> m_queryWrappers;
 };
 
 DEFINE_TYPE_CASTS(WebGL2RenderingContextBase, CanvasRenderingContext, context,
     context->is3d() && WebGLRenderingContextBase::getWebGLVersion(context) >= 2,
     context.is3d() && WebGLRenderingContextBase::getWebGLVersion(&context) >= 2);
 
 } // namespace blink
 
 #endif