[Android] Log exceptions thrown by newly converted DeviceUtils calls in telemetry.

tools/telemetry/telemetry/core/platform/profiler/tcmalloc_heap_profiler.py

Index: tools/telemetry/telemetry/core/platform/profiler/tcmalloc_heap_profiler.py
diff --git a/tools/telemetry/telemetry/core/platform/profiler/tcmalloc_heap_profiler.py b/tools/telemetry/telemetry/core/platform/profiler/tcmalloc_heap_profiler.py
index 4fc39829c5eff09d3a3704be725ad044d006d1fe..01d95c341631f6358c3c7ecda689c900e6fa52e8 100644
--- a/tools/telemetry/telemetry/core/platform/profiler/tcmalloc_heap_profiler.py
+++ b/tools/telemetry/telemetry/core/platform/profiler/tcmalloc_heap_profiler.py
@@ -34,7 +34,11 @@ class _TCMallocHeapProfilerAndroid(object):
   def _SetDeviceProperties(self, properties):
     device_configured = False
     # This profiler requires adb root to set properties.
-    self._browser_backend.adb.device().EnableRoot()
+    try:
+      self._browser_backend.adb.device().EnableRoot()
+    except:
+      logging.exception('New exception caused by DeviceUtils conversion')
+      raise
     for values in properties.itervalues():
       device_property = self._browser_backend.adb.device().GetProp(values[0])
       if not device_property or not device_property.strip():
@@ -51,8 +55,12 @@ class _TCMallocHeapProfilerAndroid(object):
       raise Exception('Device required special config, run again.')
 
   def CollectProfile(self):
-    self._browser_backend.adb.device().PullFile(
-        self._DEFAULT_DEVICE_DIR, self._output_path)
+    try:
+      self._browser_backend.adb.device().PullFile(
+          self._DEFAULT_DEVICE_DIR, self._output_path)
+    except:
+      logging.exception('New exception caused by DeviceUtils conversion')
+      raise
     self._browser_backend.adb.RunShellCommand(
         'rm ' + os.path.join(self._DEFAULT_DEVICE_DIR, '*'))
     if os.path.exists(self._output_path):