gpu: Optimize and cleanup code used for CHROMIUM_copy_texture.

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index cbbbe3f17e1f041c83de4c3eed922ece3de3377c..eb78d0af02cfa56b7ecc4ec91c9e66a7a00f665b 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -10089,25 +10089,27 @@ void GLES2DecoderImpl::DoCopyTextureCHROMIUM(
     copy_texture_CHROMIUM_->DoCopyTextureWithTransform(
         this,
         source_texture->target(),
-        dest_texture->target(),
         source_texture->service_id(),
-        dest_texture->service_id(), level,
-        source_width, source_height,
+        dest_texture->service_id(),
+        level,
+        source_width,
+        source_height,
         unpack_flip_y_,
         unpack_premultiply_alpha_,
         unpack_unpremultiply_alpha_,
         default_matrix);
   } else {
-    copy_texture_CHROMIUM_->DoCopyTexture(
-        this,
-        source_texture->target(),
-        dest_texture->target(),
-        source_texture->service_id(),
-        dest_texture->service_id(), level,
-        source_width, source_height,
-        unpack_flip_y_,
-        unpack_premultiply_alpha_,
-        unpack_unpremultiply_alpha_);
+    copy_texture_CHROMIUM_->DoCopyTexture(this,
+                                          source_texture->target(),
+                                          source_texture->service_id(),
+                                          dest_texture->service_id(),
+                                          level,
+                                          internal_format,
+                                          source_width,
+                                          source_height,
+                                          unpack_flip_y_,
+                                          unpack_premultiply_alpha_,
+                                          unpack_unpremultiply_alpha_);
   }
 
   DoDidUseTexImageIfNeeded(source_texture, source_texture->target());