Request all tethering interfaces, fix corruption.

netd now tracks statistics for tethered interfaces across tethering
sessions, so switch to asking for all tethering stats.  (Currently
we're double-counting all tethering data, ever since it started
tracking across sessions.)

Also catch OOME to handle corrupt stats files, which we then dump to
DropBox and then start over.

Bug: 5868832, 9796109
Change-Id: I2eb2a1bf01b993dd198597d770fe0e022466c6b9
diff --git a/services/java/com/android/server/net/NetworkStatsRecorder.java b/services/java/com/android/server/net/NetworkStatsRecorder.java
index 2b32b41..cea084b 100644
--- a/services/java/com/android/server/net/NetworkStatsRecorder.java
+++ b/services/java/com/android/server/net/NetworkStatsRecorder.java
@@ -135,6 +135,9 @@
             } catch (IOException e) {
                 Log.wtf(TAG, "problem completely reading network stats", e);
                 recoverFromWtf();
+            } catch (OutOfMemoryError e) {
+                Log.wtf(TAG, "problem completely reading network stats", e);
+                recoverFromWtf();
             }
         }
         return complete;
@@ -226,6 +229,9 @@
             } catch (IOException e) {
                 Log.wtf(TAG, "problem persisting pending stats", e);
                 recoverFromWtf();
+            } catch (OutOfMemoryError e) {
+                Log.wtf(TAG, "problem persisting pending stats", e);
+                recoverFromWtf();
             }
         }
     }
@@ -241,6 +247,9 @@
         } catch (IOException e) {
             Log.wtf(TAG, "problem removing UIDs " + Arrays.toString(uids), e);
             recoverFromWtf();
+        } catch (OutOfMemoryError e) {
+            Log.wtf(TAG, "problem removing UIDs " + Arrays.toString(uids), e);
+            recoverFromWtf();
         }
 
         // Remove any pending stats