Explicitly disable all attribs before drawing in CopyTextureCHROMIUM

gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.cc

Index: gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.cc b/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.cc
index 36f2b42bd6c2d038cba5ba192d7f7f966f789465..5ce4a223fb3d185563e6d8e1948f5b7b4916713b 100644
--- a/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.cc
+++ b/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.cc
@@ -395,6 +395,7 @@ void CopyTextureCHROMIUMResourceManager::DoCopyTextureWithTransform(
   } else
 #endif
   {
+    decoder->ClearAllAttributes();
     glEnableVertexAttribArray(kVertexPositionAttrib);
 
     glBindBuffer(GL_ARRAY_BUFFER, buffer_id_);
@@ -421,7 +422,7 @@ void CopyTextureCHROMIUMResourceManager::DoCopyTextureWithTransform(
     glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
   }
 
-  decoder->RestoreAttribute(kVertexPositionAttrib);
+  decoder->RestoreAllAttributes();
   decoder->RestoreTextureState(source_id);
   decoder->RestoreTextureState(dest_id);
   decoder->RestoreTextureUnitBindings(0);