Factor code from ThemeMac into ThemeMacPainter.

third_party/WebKit/Source/core/paint/ThemePainter.cpp

Index: third_party/WebKit/Source/core/paint/ThemePainter.cpp
diff --git a/third_party/WebKit/Source/core/paint/ThemePainter.cpp b/third_party/WebKit/Source/core/paint/ThemePainter.cpp
index 89fd9dd692f8b009c2c98835f656118fb3e612e7..e0b8e877518c6275c80b5bae941d62493e0f128d 100644
--- a/third_party/WebKit/Source/core/paint/ThemePainter.cpp
+++ b/third_party/WebKit/Source/core/paint/ThemePainter.cpp
@@ -56,8 +56,7 @@ static WebFallbackThemeEngine::State getWebFallbackThemeState(const LayoutObject
     return WebFallbackThemeEngine::StateNormal;
 }
 
-ThemePainter::ThemePainter(Theme* platformTheme)
-    : m_platformTheme(platformTheme)
+ThemePainter::ThemePainter()
 {
 }
 
@@ -81,21 +80,6 @@ bool ThemePainter::paint(const LayoutObject& o, const PaintInfo& paintInfo, cons
         }
     }
 
-    if (m_platformTheme) {
-        switch (part) {
-        case CheckboxPart:
-        case RadioPart:
-        case PushButtonPart:
-        case SquareButtonPart:
-        case ButtonPart:
-        case InnerSpinButtonPart:
-            m_platformTheme->paint(part, LayoutTheme::controlStatesForLayoutObject(o), const_cast<GraphicsContext&>(paintInfo.context), r, o.styleRef().effectiveZoom(), o.view()->frameView());
-            return false;
-        default:
-            break;
-        }
-    }
-
     // Call the appropriate paint method based off the appearance value.
     switch (part) {
     case CheckboxPart: