Remove GpuInfo::can_lose_context.

content/test/gpu/gpu_tests/fake_win_amd_gpu_info.py

 # Copyright 2015 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.
 
 # This dictionary of GPU information was reformatted from the output
 # of the webgl_conformance tests run on the win_chromium_rel_ng trybot
 # (the step run on Windows with AMD GPU). It helps test
 # telemetry.internal.platform's GPUInfo class, and specifically the
 # attributes it expects to find in the dictionary; if the code changes
 # in an incompatible way, tests using this fake GPU info will begin
@@ skipping 21 matching lines @@
             'rasterization': 'disabled_software',
             'video_decode': 'enabled',
             'video_encode': 'enabled',
             'webgl': 'enabled'
         },
     'aux_attributes':
         {
             'adapter_luid': 0.0,
             'amd_switchable': False,
             'basic_info_state': 1,
-            'can_lose_context': False,
             'context_info_state': 1,
             'direct_rendering': True,
             'driver_date': '11-20-2014',
             'driver_vendor': 'Advanced Micro Devices, Inc.',
             'driver_version': '14.501.1003.0',
             'dx_diagnostics_info_state': 0,
             'gl_extensions':
               'GL_OES_element_index_uint GL_OES_packed_depth_stencil '
               'GL_OES_get_program_binary GL_OES_rgb8_rgba8 '
               'GL_EXT_texture_format_BGRA8888 GL_EXT_read_format_bgra '
@@ skipping 64 matching lines @@
         ],
     'driver_bug_workarounds':
         [
             'clear_uniforms_before_first_program_use',
             'exit_on_context_lost',
             'force_cube_complete',
             'scalarize_vec_and_mat_constructor_args',
             'texsubimage_faster_than_teximage'
         ]
 }