Fix OOM when importing too large dictionary file

If OOM is thrown when reading zip file, try to reset import state and
return. As OOM has been thrown, recovering might not be enough; hope the
fix works well.

BUG=
TEST=
REF_BUG=27289195
REF_CL=115524102
REF_TIME=2016-02-25T13:34:01+09:00
REF_TIME_RAW=1456374841 +0900

Author: matsuza

src/android/src/com/google/android/inputmethod/japanese/userdictionary/UserDictionaryToolActivity.java

@@ -308,6 +308,11 @@ private void handleZipImportData(String path) {
       toastManager.showMessageShortly(
           R.string.user_dictionary_tool_error_import_cannot_read_import_source);
       model.resetImportState();
+    } catch (OutOfMemoryError e) {
+      // The zip file being imported is too large. Recovering (if possible).
+      toastManager.showMessageShortly(
+              R.string.user_dictionary_tool_error_import_too_large_zip_entry);
+      model.resetImportState();
     } finally {
       if (zipFile != null) {
         MozcUtil.closeIgnoringIOException(zipFile);
@@ -578,6 +583,11 @@ public void onClick(DialogInterface dialog, int which) {
                       R.string.user_dictionary_tool_error_import_cannot_read_import_source);
                   model.resetImportState();
                   return;
+                } catch (OutOfMemoryError e) {
+                  toastManager.showMessageShortly(
+                      R.string.user_dictionary_tool_error_import_too_large_zip_entry);
+                  model.resetImportState();
+                  return;
                 } finally {
                   MozcUtil.closeIgnoringIOException(zipFile);
                 }

src/android/static_resources/resources_oss/res/values/strings.xml

@@ -240,6 +240,7 @@
       <string name="user_dictionary_tool_error_import_source_invalid_scheme">Data import only works on files.</string>
       <string name="user_dictionary_tool_error_import_cannot_read_import_source">Could not read the file.</string>
       <string name="user_dictionary_tool_error_import_no_zip_entry">The ZIP file is empty.</string>
+      <string name="user_dictionary_tool_error_import_too_large_zip_entry" description="Shown when the user is importing too large ZIP file.">The ZIP file is too large.</string>
       <string name="user_dictionary_tool_error_export_no_exportable_applications">There are no applications (e.g. Google Docs) to export the user dictionary.</string>
       <string name="user_dictionary_tool_error_export_failed_to_export">Failed to export the user dictionary.</string>
       <string name="user_dictionary_tool_status_error_general">The operation has failed.</string>

src/mozc_version_template.txt

@@ -1,6 +1,6 @@
 MAJOR=2
 MINOR=17
-BUILD=2509
+BUILD=2510
 REVISION=102
 # NACL_DICTIONARY_VERSION is the target version of the system dictionary to be
 # downloaded by NaCl Mozc.