Remove the "target" argument from CopyTextureChromium.

gpu/blink/webgraphicscontext3d_impl.h

 // Copyright (c) 2012 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 GPU_BLINK_WEBGRAPHICSCONTEXT3D_IMPL_H_
 #define GPU_BLINK_WEBGRAPHICSCONTEXT3D_IMPL_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 527 matching lines @@
   void getQueryObjectuivEXT(blink::WebGLId query,
                             blink::WGC3Denum pname,
                             blink::WGC3Duint* params) override;
 
   void queryCounterEXT(blink::WebGLId query, blink::WGC3Denum target) override;
   void getQueryObjectui64vEXT(blink::WebGLId query,
                               blink::WGC3Denum pname,
                               blink::WGC3Duint64* params) override;
 
   void copyTextureCHROMIUM(
-      blink::WGC3Denum target,
       blink::WebGLId source_id,
       blink::WebGLId dest_id,
       blink::WGC3Denum internal_format,
       blink::WGC3Denum dest_type,
       blink::WGC3Dboolean unpack_flip_y,
       blink::WGC3Dboolean unpack_premultiply_alpha,
       blink::WGC3Dboolean unpack_unmultiply_alpha) override;
 
   void copySubTextureCHROMIUM(
-      blink::WGC3Denum target,
       blink::WebGLId source_id,
       blink::WebGLId dest_id,
       blink::WGC3Dint xoffset,
       blink::WGC3Dint yoffset,
       blink::WGC3Dint x,
       blink::WGC3Dint y,
       blink::WGC3Dsizei width,
       blink::WGC3Dsizei height,
       blink::WGC3Dboolean unpack_flip_y,
       blink::WGC3Dboolean unpack_premultiply_alpha,
@@ skipping 411 matching lines @@
   std::vector<blink::WGC3Denum> synthetic_errors_;
 
   ::gpu::gles2::GLES2Interface* gl_;
   bool lose_context_when_out_of_memory_;
   uint32_t flush_id_;
 };
 
 }  // namespace gpu_blink
 
 #endif  // GPU_BLINK_WEBGRAPHICSCONTEXT3D_IMPL_H_