Added Blink-side support for EXT_blend_minmax WebGL extension

Source/bindings/v8/custom/V8WebGLRenderingContextCustom.cpp

Index: Source/bindings/v8/custom/V8WebGLRenderingContextCustom.cpp
diff --git a/Source/bindings/v8/custom/V8WebGLRenderingContextCustom.cpp b/Source/bindings/v8/custom/V8WebGLRenderingContextCustom.cpp
index db7e3091c66ee516548faee28aed29304dbb7fe6..b75d77956999f7d1c93283c4dbd1886feb272abb 100644
--- a/Source/bindings/v8/custom/V8WebGLRenderingContextCustom.cpp
+++ b/Source/bindings/v8/custom/V8WebGLRenderingContextCustom.cpp
@@ -32,6 +32,7 @@
 #include "V8WebGLRenderingContext.h"
 
 #include "V8ANGLEInstancedArrays.h"
+#include "V8EXTBlendMinMax.h"
 #include "V8EXTFragDepth.h"
 #include "V8EXTShaderTextureLOD.h"
 #include "V8EXTTextureFilterAnisotropic.h"
@@ -189,6 +190,10 @@ static v8::Handle<v8::Value> toV8Object(WebGLExtension* extension, v8::Handle<v8
         extensionObject = toV8(static_cast<ANGLEInstancedArrays*>(extension), contextObject, isolate);
         referenceName = "angleInstancedArraysName";
         break;
+    case EXTBlendMinMaxName:
+        extensionObject = toV8(static_cast<EXTBlendMinMax*>(extension), contextObject, isolate);
+        referenceName = "extBlendMinMaxName";
+        break;
     case EXTFragDepthName:
         extensionObject = toV8(static_cast<EXTFragDepth*>(extension), contextObject, isolate);
         referenceName = "extFragDepthName";