Add HasWord(string) method to SpellcheckCustomDictionary

This CL adds a method HasWord(string) to SpellcheckCustomDictionary and changes
the internal data structure in SpellcheckCustomDictionary from a vector to a set
for more efficient querying. Spelling service client will use the new method to
send IN_DICTIONARY feedback to spelling service for words that are in user's
custom spellcheck dictionary. Spelling service client will use this method in
upcoming CLs.

This CL also modifies IPC message "SpellCheckMsg_Init" to pass a set instead of
a vector of custom dictionary words. The browser sends this message to the
renderer to initialize spellcheck.

BUG=170514

Review URL: https://chromiumcodereview.appspot.com/15940004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@202722 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 11 insertions, 3 deletions

diff --git a/chrome/renderer/spellchecker/custom_dictionary_engine_unittest.cc b/chrome/renderer/spellchecker/custom_dictionary_engine_unittest.cc
index 440d110..3a6ea8a 100644
--- a/chrome/renderer/spellchecker/custom_dictionary_engine_unittest.cc
+++ b/chrome/renderer/spellchecker/custom_dictionary_engine_unittest.cc
@@ -1,15 +1,23 @@
 // Copyright (c) 2013 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 "chrome/renderer/spellchecker/custom_dictionary_engine.h"
 
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/renderer/spellchecker/custom_dictionary_engine.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 TEST(CustomDictionaryTest, HandlesEmptyWordWithInvalidSubstring) {
   CustomDictionaryEngine engine;
-  std::vector<std::string> custom_words;
-
+  std::set<std::string> custom_words;
   engine.Init(custom_words);
   EXPECT_FALSE(engine.SpellCheckWord(string16().c_str(), 15, 23));
 }
 
+TEST(CustomDictionaryTest, Basic) {
+  CustomDictionaryEngine engine;
+  EXPECT_FALSE(engine.SpellCheckWord(ASCIIToUTF16("helllo").c_str(), 0, 6));
+  std::set<std::string> custom_words;
+  custom_words.insert("helllo");
+  engine.Init(custom_words);
+  EXPECT_TRUE(engine.SpellCheckWord(ASCIIToUTF16("helllo").c_str(), 0, 6));
+}