Use client side arrays for GL_STREAM_DRAW attributes

gpu/command_buffer/service/feature_info.cc

 // 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.
 
 #include "gpu/command_buffer/service/feature_info.h"
 
 #include <set>
 
 #include "base/command_line.h"
 #include "base/string_number_conversions.h"
@@ skipping 76 matching lines @@
 FeatureInfo::Workarounds::Workarounds()
     : clear_alpha_in_readpixels(false),
       needs_glsl_built_in_function_emulation(false),
       needs_offscreen_buffer_workaround(false),
       reverse_point_sprite_coord_origin(false),
       set_texture_filter_before_generating_mipmap(false),
       use_current_program_after_successful_link(false),
       restore_scissor_on_fbo_change(false),
       flush_on_context_switch(false),
       delete_instead_of_resize_fbo(false),
+//      use_client_side_arrays_for_stream_buffers(false),
+      use_client_side_arrays_for_stream_buffers(true),
       max_texture_size(0),
       max_cube_map_texture_size(0) {
 }
 
 FeatureInfo::FeatureInfo() {
   static const GLenum kAlphaTypes[] = {
       GL_UNSIGNED_BYTE,
   };
   static const GLenum kRGBTypes[] = {
       GL_UNSIGNED_BYTE,
@@ skipping 222 matching lines @@
       validators_.pixel_type.AddValue(GL_UNSIGNED_INT_24_8);
     }
     validators_.render_buffer_format.AddValue(GL_DEPTH24_STENCIL8);
   }
 
   if (extensions.Contains("GL_OES_vertex_array_object") ||
       extensions.Contains("GL_ARB_vertex_array_object") ||
       extensions.Contains("GL_APPLE_vertex_array_object")) {
     feature_flags_.native_vertex_array_object = true;
   }
+// remove!
+feature_flags_.native_vertex_array_object = false;
 
   if (extensions.Contains("GL_OES_element_index_uint") ||
       gfx::HasDesktopGLFeatures()) {
     AddExtensionString("GL_OES_element_index_uint");
     validators_.index_type.AddValue(GL_UNSIGNED_INT);
   }
 
   bool enable_texture_format_bgra8888 = false;
   bool enable_read_format_bgra = false;
   // Check if we should allow GL_EXT_texture_format_BGRA8888
@@ skipping 305 matching lines @@
   if (extensions_.find(str) == std::string::npos) {
     extensions_ += (extensions_.empty() ? "" : " ") + str;
   }
 }
 
 FeatureInfo::~FeatureInfo() {
 }
 
 }  // namespace gles2
 }  // namespace gpu