Remove methods from WebGraphicsContext3D that wrap type casts.

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

Index: third_party/WebKit/Source/modules/webgl/WebGLSync.h
diff --git a/third_party/WebKit/Source/modules/webgl/WebGLSync.h b/third_party/WebKit/Source/modules/webgl/WebGLSync.h
index ca47ba2b220f4e3a82f9f56063a8954e99d82690..ba9a7815f6b90a40192b3b32ca4ecd37f93c1590 100644
--- a/third_party/WebKit/Source/modules/webgl/WebGLSync.h
+++ b/third_party/WebKit/Source/modules/webgl/WebGLSync.h
@@ -7,6 +7,7 @@
 
 #include "modules/webgl/WebGLSharedObject.h"
 #include "public/platform/WebGraphicsContext3D.h"
+#include "third_party/khronos/GLES2/gl2.h"
 
 namespace blink {
 
@@ -17,12 +18,12 @@ class WebGLSync : public WebGLSharedObject {
 public:
     ~WebGLSync() override;
 
-    WGC3Dsync object() const { return m_object; }
+    GLsync object() const { return m_object; }
 
 protected:
-    WebGLSync(WebGL2RenderingContextBase*, WGC3Dsync, GLenum objectType);
+    WebGLSync(WebGL2RenderingContextBase*, GLsync, GLenum objectType);
 
-    bool hasObject() const override { return m_object != 0; }
+    bool hasObject() const override { return m_object != nullptr; }
     void deleteObjectImpl(WebGraphicsContext3D*, gpu::gles2::GLES2Interface*) override;
 
     GLenum objectType() const { return m_objectType; }
@@ -30,7 +31,7 @@ protected:
 private:
     bool isSync() const override { return true; }
 
-    WGC3Dsync m_object;
+    GLsync m_object;
     GLenum m_objectType;
 };