Implemented typo recognition in Chrome for Android.

chrome/renderer/spellchecker/spellcheck.h

Index: chrome/renderer/spellchecker/spellcheck.h
diff --git a/chrome/renderer/spellchecker/spellcheck.h b/chrome/renderer/spellchecker/spellcheck.h
index 1977faef511891c8088a7d7a59d2c8d75746e4e5..714d4b4bb083a557c2a03a30ad108a9bbeae56dd 100644
--- a/chrome/renderer/spellchecker/spellcheck.h
+++ b/chrome/renderer/spellchecker/spellcheck.h
@@ -52,13 +52,12 @@ class SpellCheck : public content::RenderProcessObserver,
 
   void AddSpellcheckLanguage(base::File file, const std::string& language);
 
-  // If there are no dictionary files, then this requests them from the browser
+  // If there is no dictionary file, then this requests one from the browser
   // and does not block. In this case it returns true.
-  // If there are dictionary files, but their Hunspell has not been loaded, then
-  // this loads their Hunspell.
-  // If each dictionary file's Hunspell is already loaded, this does nothing. In
-  // both the latter cases it returns false, meaning that it is OK to continue
-  // spellchecking.
+  // If there is a dictionary file, but Hunspell has not been loaded, then
+  // this loads Hunspell.
+  // If Hunspell is already loaded, this does nothing. In both the latter cases
+  // it returns false, meaning that it is OK to continue spellchecking.
   bool InitializeIfNeeded();
 
   // SpellCheck a word.
@@ -95,7 +94,7 @@ class SpellCheck : public content::RenderProcessObserver,
 
   // Requests to spellcheck the specified text in the background. This function
   // posts a background task and calls SpellCheckParagraph() in the task.
-#if !defined (USE_BROWSER_SPELLCHECKER)
+#if !defined (OS_MACOSX)
   void RequestTextChecking(const base::string16& text,
                            blink::WebTextCheckingCompletion* completion);
 #endif
@@ -132,7 +131,7 @@ class SpellCheck : public content::RenderProcessObserver,
   void OnEnableSpellCheck(bool enable);
   void OnRequestDocumentMarkers();
 
-#if !defined (USE_BROWSER_SPELLCHECKER)
+#if !defined (OS_MACOSX)
   // Posts delayed spellcheck task and clear it if any.
   // Takes ownership of |request|.
   void PostDelayedSpellCheckTask(SpellcheckRequest* request);