Pull in various gpu/command_buffer fixes from chromium

gpu/command_buffer/common/capabilities.cc

 // Copyright 2013 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/common/capabilities.h"
 
 namespace gpu {
 
 Capabilities::PerStagePrecisions::PerStagePrecisions() {
 }
 
 Capabilities::Capabilities()
     : max_combined_texture_image_units(0),
       max_cube_map_texture_size(0),
       max_fragment_uniform_vectors(0),
       max_renderbuffer_size(0),
       max_texture_image_units(0),
       max_texture_size(0),
       max_varying_vectors(0),
       max_vertex_attribs(0),
       max_vertex_texture_image_units(0),
       max_vertex_uniform_vectors(0),
       num_compressed_texture_formats(0),
       num_shader_binary_formats(0),
       bind_generates_resource_chromium(0),
+      max_3d_texture_size(0),
+      max_array_texture_layers(0),
+      max_color_attachments(0),
+      max_combined_fragment_uniform_components(0),
+      max_combined_uniform_blocks(0),
+      max_combined_vertex_uniform_components(0),
+      max_draw_buffers(0),
+      max_element_index(0),
+      max_elements_indices(0),
+      max_elements_vertices(0),
+      max_fragment_input_components(0),
+      max_fragment_uniform_blocks(0),
+      max_fragment_uniform_components(0),
+      max_program_texel_offset(0),
+      max_samples(0),
+      max_server_wait_timeout(0),
+      max_transform_feedback_interleaved_components(0),
       max_transform_feedback_separate_attribs(0),
+      max_transform_feedback_separate_components(0),
+      max_uniform_block_size(0),
       max_uniform_buffer_bindings(0),
+      max_varying_components(0),
+      max_vertex_output_components(0),
+      max_vertex_uniform_blocks(0),
+      max_vertex_uniform_components(0),
+      min_program_texel_offset(0),
+      num_extensions(0),
+      num_program_binary_formats(0),
       uniform_buffer_offset_alignment(1),
       post_sub_buffer(false),
       egl_image_external(false),
       texture_format_atc(false),
       texture_format_bgra8888(false),
       texture_format_dxt1(false),
       texture_format_dxt5(false),
       texture_format_etc1(false),
       texture_format_etc1_npot(false),
       texture_rectangle(false),
       iosurface(false),
       texture_usage(false),
       texture_storage(false),
       discard_framebuffer(false),
       sync_query(false),
       image(false),
       future_sync_points(false),
       blend_equation_advanced(false),
       blend_equation_advanced_coherent(false),
-      texture_rg(false) {
+      texture_rg(false),
+      major_version(2),
+      minor_version(0) {
 }
 
 }  // namespace gpu