Adding utility methods to retrieve minidump paths from the browser.

telemetry/telemetry/internal/platform/android_platform_backend.py

Index: telemetry/telemetry/internal/platform/android_platform_backend.py
diff --git a/telemetry/telemetry/internal/platform/android_platform_backend.py b/telemetry/telemetry/internal/platform/android_platform_backend.py
index 93f3dccb1e70fb0505bbd5a6b32f84c886b739a2..904b977feb79413dfdebd4b9748ab16da13d4257 100644
--- a/telemetry/telemetry/internal/platform/android_platform_backend.py
+++ b/telemetry/telemetry/internal/platform/android_platform_backend.py
@@ -689,6 +689,9 @@ class AndroidPlatformBackend(
                                        stdout=subprocess.PIPE).communicate()[0])
     return (True, ret)
 
+  def GetMinidumpPath(self):
+    return None
+
   def IsScreenOn(self):
     """Determines if device screen is on."""
     return self._device.IsScreenOn()