Makes sure the keyboard typing isn't blocked when InputMethod::OnFocus() is not correctly called.

ui/base/ime/input_method_log_collector.cc

Index: ui/base/ime/input_method_log_collector.cc
diff --git a/ui/base/ime/input_method_log_collector.cc b/ui/base/ime/input_method_log_collector.cc
new file mode 100644
index 0000000000000000000000000000000000000000..daa3396fc0c1abdca3c0a9748eeff9e2a08255a3
--- /dev/null
+++ b/ui/base/ime/input_method_log_collector.cc
@@ -0,0 +1,56 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/base/ime/input_method_log_collector.h"
+
+#include <string.h>
+
+#include "base/debug/alias.h"
+#include "base/debug/dump_without_crashing.h"
+#include "base/macros.h"
+
+namespace {
+
+const size_t kMaxLogCount = 50;
+
+}
+
+namespace ui {
+
+InputMethodLogCollector::InputMethodLogCollector() {}
+
+InputMethodLogCollector::~InputMethodLogCollector() {}
+
+void InputMethodLogCollector::AddString(const char* str_val) {
+  if (logs_.size() >= kMaxLogCount)
+    logs_.erase(logs_.begin());
+  logs_.push_back(str_val);
+}
+
+void InputMethodLogCollector::AddBoolean(bool bool_val) {
+  AddString(bool_val ? "true" : "false");
+}
+
+void InputMethodLogCollector::DumpLogs() {
+  static int dump_times = 0;
+  if (dump_times > 5) {
+    ClearLogs();
+    return;
+  }
+  const char* logs_copy[kMaxLogCount];
+  size_t log_count = logs_.size();
+  for (size_t i = 0; i < log_count && i < arraysize(logs_copy); ++i)
+    logs_copy[i] = logs_[i];
+  base::debug::Alias(&log_count);
+  base::debug::Alias(&logs_copy);
+  base::debug::DumpWithoutCrashing();
+  dump_times++;
+  ClearLogs();
+}
+
+void InputMethodLogCollector::ClearLogs() {
+  logs_.clear();
+}
+
+}  // namespace ui