[telemetry] Expose log file contents in telemetry.internal.browser.Browser

telemetry/telemetry/internal/browser/browser.py

Index: telemetry/telemetry/internal/browser/browser.py
diff --git a/telemetry/telemetry/internal/browser/browser.py b/telemetry/telemetry/internal/browser/browser.py
index 3c62362820f07a3ea2431ffe9cf798f308df4c1d..6ea47d85a1f6501875244f1b539cb5db7147ea47 100644
--- a/telemetry/telemetry/internal/browser/browser.py
+++ b/telemetry/telemetry/internal/browser/browser.py
@@ -272,6 +272,9 @@ class Browser(app.App):
   def GetStandardOutput(self):
     return self._browser_backend.GetStandardOutput()
 
+  def GetLogFileContents(self):
+    return self._browser_backend.GetLogFileContents()
+
   def GetStackTrace(self):
     return self._browser_backend.GetStackTrace()