Patch 1: Added a Chrome flag to enable Android spellchecker.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 60cafaf3f19fcad85d5daf1a2a20e86d42b8329e..108b228438ab151de08f37a10f9ac4f6ecfec48c 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -986,6 +986,11 @@ const char kSpeculativeResourcePrefetchingLearning[] = "learning";
 const char kSpeculativeResourcePrefetchingEnabled[] = "enabled";
 
 #if defined(ENABLE_SPELLCHECK)
+#if defined(OS_ANDROID)
+// Enables use of the Android spellchecker.
+const char kEnableAndroidSpellchecker[] = "enable-android-spellchecker";
+#endif
+
 // Enables the multilingual spellchecker.
 const char kEnableMultilingualSpellChecker[] =
     "enable-multilingual-spellchecker";