gpu: Remove WebGraphicsContext3D::makeContextCurrent()

webkit/common/gpu/webgraphicscontext3d_impl.h

Index: webkit/common/gpu/webgraphicscontext3d_impl.h
diff --git a/webkit/common/gpu/webgraphicscontext3d_impl.h b/webkit/common/gpu/webgraphicscontext3d_impl.h
index 5cb055db5f841ebcf7c4978b28828697370b0330..867f7338a9c7e8360a7f9fe995c4eec55fc38529 100644
--- a/webkit/common/gpu/webgraphicscontext3d_impl.h
+++ b/webkit/common/gpu/webgraphicscontext3d_impl.h
@@ -46,9 +46,18 @@ class WebGraphicsContext3DErrorMessageCallback;
 class WEBKIT_GPU_EXPORT WebGraphicsContext3DImpl
     : public NON_EXPORTED_BASE(blink::WebGraphicsContext3D) {
  public:
+  virtual ~WebGraphicsContext3DImpl();
+
+  // Must be called after initialize() and before any of the following methods.
+  // Permanently binds to the first calling thread. Returns false if the
+  // graphics context fails to create. Do not call from more than one thread.
+  virtual bool BindToCurrentThread() = 0;
+
   //----------------------------------------------------------------------
   // WebGraphicsContext3D methods
 
+  // TODO(dshwang): remove it.
+  virtual bool makeContextCurrent();
   virtual uint32_t lastFlushID();
 
   virtual unsigned int insertSyncPoint();
@@ -570,7 +579,6 @@ class WEBKIT_GPU_EXPORT WebGraphicsContext3DImpl
   friend class WebGraphicsContext3DErrorMessageCallback;
 
   WebGraphicsContext3DImpl();
-  virtual ~WebGraphicsContext3DImpl();
 
   ::gpu::gles2::GLES2ImplementationErrorMessageCallback*
       getErrorMessageCallback();