| Index: tools/telemetry/telemetry/core/backends/chrome/cros_browser_backend.py
 | 
| diff --git a/tools/telemetry/telemetry/core/backends/chrome/cros_browser_backend.py b/tools/telemetry/telemetry/core/backends/chrome/cros_browser_backend.py
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| index 77b28fc25fa7c8c2aa58c44c7e796207a6d5e5b7..d4b5c5549ae80445e96bc8d8b0dc28d6d87f2114 100644
 | 
| --- a/tools/telemetry/telemetry/core/backends/chrome/cros_browser_backend.py
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| +++ b/tools/telemetry/telemetry/core/backends/chrome/cros_browser_backend.py
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| @@ -22,16 +22,11 @@ class CrOSBrowserBackend(chrome_browser_backend.ChromeBrowserBackend):
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|          supports_extensions=not is_guest,
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|          browser_options=browser_options,
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|          output_profile_path=None, extensions_to_load=extensions_to_load)
 | 
| -
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| +    assert browser_options.IsCrosBrowserOptions()
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|      # Initialize fields so that an explosion during init doesn't break in Close.
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|      self._cri = cri
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|      self._is_guest = is_guest
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|      self._forwarder = None
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| -
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| -    from telemetry.core.backends.chrome import chrome_browser_options
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| -    assert isinstance(browser_options,
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| -                      chrome_browser_options.CrosBrowserOptions)
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| -
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|      self.wpr_port_pairs = forwarders.PortPairs(
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|          http=forwarders.PortPair(self.wpr_port_pairs.http.local_port,
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|                                   self.GetRemotePort(
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| 
 |