Forward handling of low-mem message to the content renderer client. Add APIs to handle this case.

chrome/renderer/spellchecker/spellcheck_unittest.cc

 // Copyright (c) 2011 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 "webkit/glue/webkit_glue.h"
 
 #include "base/file_util.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/platform_file.h"
@@ skipping 18 matching lines @@
 
 }  // namespace
 
 class SpellCheckTest : public testing::Test {
  public:
   SpellCheckTest() {
     ReinitializeSpellCheck("en-US");
   }
 
   void ReinitializeSpellCheck(const std::string& language) {
-    spell_check_.reset(new SpellCheck());
+    spell_check_.reset(new SpellCheck(NULL));
 
     FilePath hunspell_directory = GetHunspellDirectory();
     EXPECT_FALSE(hunspell_directory.empty());
     base::PlatformFile file = base::CreatePlatformFile(
         SpellCheckCommon::GetVersionedFileName(language, hunspell_directory),
         base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ, NULL, NULL);
     spell_check_->Init(
         file, std::vector<std::string>(), language);
   }
 
@@ skipping 648 matching lines @@
     string16 misspelled_word(UTF8ToUTF16(kTestCases[i].input));
     string16 expected_autocorrect_word(
         UTF8ToUTF16(kTestCases[i].expected_result));
     string16 autocorrect_word = spell_check()->GetAutoCorrectionWord(
         misspelled_word, 0);
 
     // Check for spelling.
     EXPECT_EQ(expected_autocorrect_word, autocorrect_word);
   }
 }