Inline default false setting for unifiedTextCheckerEnabled setting.

The default has been false for at least two years now. Chromium can turn it on,
but it's appropriate for the initial value to be inlined into Settings.in, like
most of the default-off settings.

Review URL: https://codereview.chromium.org/1288073003

git-svn-id: svn://svn.chromium.org/blink/trunk@201065 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/frame/Settings.cpp

@@ -52,7 +52,6 @@ static EditingBehaviorType editingBehaviorTypeForPlatform()
     ;
 }
 
-static const bool defaultUnifiedTextCheckerEnabled = false;
 #if OS(WIN)
 static const bool defaultSelectTrailingWhitespaceEnabled = true;
 #else

third_party/WebKit/Source/core/frame/Settings.in

@@ -164,7 +164,7 @@ spatialNavigationEnabled initial=false
 # crbug.com/304894 tracks removal once it's been enabled on all platforms.
 touchDragDropEnabled initial=false
 
-unifiedTextCheckerEnabled initial=defaultUnifiedTextCheckerEnabled
+unifiedTextCheckerEnabled initial=false
 
 # Some apps could have a default video poster if it is not set.
 defaultVideoPosterURL type=String