Avoid crashing when the Content URL is not found.

I'm not sure when this can happen, but it seems it does
at least on older versions of the platform. Let's avoid
crashing.

Bug: 11618402
Change-Id: If730b5bd8f20e0f60b884eab5900099116afc5f0
diff --git a/java/src/com/android/inputmethod/dictionarypack/DownloadManagerWrapper.java b/java/src/com/android/inputmethod/dictionarypack/DownloadManagerWrapper.java
index e95ca17..75cc7d4 100644
--- a/java/src/com/android/inputmethod/dictionarypack/DownloadManagerWrapper.java
+++ b/java/src/com/android/inputmethod/dictionarypack/DownloadManagerWrapper.java
@@ -59,6 +59,10 @@
             // be opened. It may be a problem with file system corruption. In any case, there is
             // not much we can do apart from avoiding crashing.
             Log.e(TAG, "Can't remove files with ID " + ids + " from download manager", e);
+        } catch (IllegalArgumentException e) {
+            // Not sure how this can happen, but it could be another case where the provider
+            // is disabled. Or it could be a bug in older versions of the framework.
+            Log.e(TAG, "Can't find the content URL for DownloadManager?", e);
         }
     }
 
@@ -69,6 +73,8 @@
             }
         } catch (SQLiteException e) {
             Log.e(TAG, "Can't open downloaded file with ID " + fileId, e);
+        } catch (IllegalArgumentException e) {
+            Log.e(TAG, "Can't find the content URL for DownloadManager?", e);
         }
         // We come here if mDownloadManager is null or if an exception was thrown.
         throw new FileNotFoundException();
@@ -81,6 +87,8 @@
             }
         } catch (SQLiteException e) {
             Log.e(TAG, "Can't query the download manager", e);
+        } catch (IllegalArgumentException e) {
+            Log.e(TAG, "Can't find the content URL for DownloadManager?", e);
         }
         // We come here if mDownloadManager is null or if an exception was thrown.
         return null;
@@ -93,6 +101,8 @@
             }
         } catch (SQLiteException e) {
             Log.e(TAG, "Can't enqueue a request with the download manager", e);
+        } catch (IllegalArgumentException e) {
+            Log.e(TAG, "Can't find the content URL for DownloadManager?", e);
         }
         return 0;
     }