Telemetry: Add more details to inspector_backend exceptions.

Previously, inspector_backend would always throw a
DevtoolsTargetCrashException. Now, it throws either a
DevtoolsTargetCrashException or a TimeoutException. The CL also adds the
debugger_url to the exception as further debugging information.

There were exactly 2 files that tried to catch a DevtoolsTargetCrashException.
I changed fast_navigation_profile_extender to catch Error instead. I will be
improving this class in the future to have better exception handling.
chrome_proxy_measurements caught a DevtoolsTargetCrashException, but its
behavior is better suited by catching a TimeoutException.

BUG=460625

Review URL: https://codereview.chromium.org/959423003

Cr-Commit-Position: refs/heads/master@{#319193}

1 files changed, 3 insertions, 3 deletions

diff --git a/tools/perf/profile_creators/fast_navigation_profile_extender.py b/tools/perf/profile_creators/fast_navigation_profile_extender.py
index e490403..abcc8eb 100644
--- a/tools/perf/profile_creators/fast_navigation_profile_extender.py
+++ b/tools/perf/profile_creators/fast_navigation_profile_extender.py
@@ -161,7 +161,7 @@ class FastNavigationProfileExtender(object):
     """Retrives the URL of the tab."""
     try:
       return tab.EvaluateJavaScript('document.URL', timeout)
-    except (exceptions.DevtoolsTargetCrashException,
+    except (exceptions.Error,
         devtools_http.DevToolsClientConnectionError,
         devtools_http.DevToolsClientUrlError):
       return None
@@ -204,7 +204,7 @@ class FastNavigationProfileExtender(object):
 
       try:
         tab.Navigate(url, None, timeout_in_seconds)
-      except (exceptions.DevtoolsTargetCrashException,
+      except (exceptions.Error,
           devtools_http.DevToolsClientConnectionError,
           devtools_http.DevToolsClientUrlError):
         # We expect a time out. It's possible for other problems to arise, but
@@ -242,7 +242,7 @@ class FastNavigationProfileExtender(object):
       except exceptions.TimeoutException:
         # Ignore time outs.
         pass
-      except (exceptions.DevtoolsTargetCrashException,
+      except (exceptions.Error,
           devtools_http.DevToolsClientConnectionError,
           devtools_http.DevToolsClientUrlError):
         # If any error occurs, remove the tab. it's probably in an