Remove the MSAA WebSetting, which is not read or used.

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

Index: third_party/WebKit/Source/core/frame/Settings.cpp
diff --git a/third_party/WebKit/Source/core/frame/Settings.cpp b/third_party/WebKit/Source/core/frame/Settings.cpp
index 947ef3ecd33fb95277c06b05080da16702ffa25a..7ba6251ff7e4621b65d6bd39c844763840d76671 100644
--- a/third_party/WebKit/Source/core/frame/Settings.cpp
+++ b/third_party/WebKit/Source/core/frame/Settings.cpp
@@ -58,12 +58,11 @@ static const bool defaultSelectTrailingWhitespaceEnabled = false;
 #endif
 
 Settings::Settings()
-    : m_openGLMultisamplingEnabled(false)
 #if DEBUG_TEXT_AUTOSIZING_ON_DESKTOP
-    , m_textAutosizingWindowSizeOverride(320, 480)
+    : m_textAutosizingWindowSizeOverride(320, 480)
     , m_textAutosizingEnabled(true)
 #else
-    , m_textAutosizingEnabled(false)
+    : m_textAutosizingEnabled(false)
 #endif
     SETTINGS_INITIALIZER_LIST
 {
@@ -116,13 +115,4 @@ bool Settings::mockScrollbarsEnabled()
     return ScrollbarTheme::mockScrollbarsEnabled();
 }
 
-void Settings::setOpenGLMultisamplingEnabled(bool flag)
-{
-    if (m_openGLMultisamplingEnabled == flag)
-        return;
-
-    m_openGLMultisamplingEnabled = flag;
-    invalidate(SettingsDelegate::MultisamplingChange);
-}
-
 } // namespace blink