Revert 186416

gpu/command_buffer/service/feature_info.cc

Index: gpu/command_buffer/service/feature_info.cc
===================================================================
--- gpu/command_buffer/service/feature_info.cc	(revision 186458)
+++ gpu/command_buffer/service/feature_info.cc	(working copy)
@@ -94,7 +94,6 @@
       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),
       max_texture_size(0),
       max_cube_map_texture_size(0) {
 }
@@ -169,7 +168,6 @@
   bool is_mesa = false;
   bool is_qualcomm = false;
   bool is_imagination = false;
-  bool is_arm = false;
   for (size_t ii = 0; ii < arraysize(string_ids); ++ii) {
     const char* str = reinterpret_cast<const char*>(
           glGetString(string_ids[ii]));
@@ -182,7 +180,6 @@
       is_mesa |= string_set.Contains("mesa");
       is_qualcomm |= string_set.Contains("qualcomm");
       is_imagination |= string_set.Contains("imagination");
-      is_arm |= string_set.Contains("arm");
     }
   }
 
@@ -194,6 +191,7 @@
       !CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableShaderNameHashing);
 
+
   bool npot_ok = false;
 
   AddExtensionString("GL_ANGLE_translated_shader_source");
@@ -339,19 +337,6 @@
     feature_flags_.native_vertex_array_object = true;
   }
 
-  // If the driver doesn't like uploading lots of buffer data constantly
-  // work around it by using client side arrays.
-  if (is_arm || is_imagination) {
-    workarounds_.use_client_side_arrays_for_stream_buffers = true;
-  }
-
-  // If we're using client_side_arrays we have to emulate
-  // vertex array objects since vertex array objects do not work
-  // with client side arrays.
-  if (workarounds_.use_client_side_arrays_for_stream_buffers) {
-    feature_flags_.native_vertex_array_object = false;
-  }
-
   if (extensions.Contains("GL_OES_element_index_uint") ||
       gfx::HasDesktopGLFeatures()) {
     AddExtensionString("GL_OES_element_index_uint");