Fix build with gcc 4.8 and C++11 support enabled

Source/platform/ThemeTypes.h

Index: Source/platform/ThemeTypes.h
diff --git a/Source/platform/ThemeTypes.h b/Source/platform/ThemeTypes.h
index 5bffca061c3f33814c73c21a39bdf6d8fd52bd66..0acba2fe24e4b4413e0b2cdc03c64703618297f5 100644
--- a/Source/platform/ThemeTypes.h
+++ b/Source/platform/ThemeTypes.h
@@ -29,16 +29,16 @@
 namespace WebCore {
 
 enum ControlState {
-    HoverState = 1,
-    PressedState = 1 << 1,
-    FocusState = 1 << 2,
-    EnabledState = 1 << 3,
-    CheckedState = 1 << 4,
-    ReadOnlyState = 1 << 5,
-    WindowInactiveState = 1 << 7,
-    IndeterminateState = 1 << 8,
-    SpinUpState = 1 << 9, // Sub-state for HoverState and PressedState.
-    AllStates = 0xffffffff
+    HoverControlState = 1,
+    PressedControlState = 1 << 1,
+    FocusControlState = 1 << 2,
+    EnabledControlState = 1 << 3,
+    CheckedControlState = 1 << 4,
+    ReadOnlyControlState = 1 << 5,
+    WindowInactiveControlState = 1 << 7,
+    IndeterminateControlState = 1 << 8,
+    SpinUpControlState = 1 << 9, // Sub-state for HoverControlState and PressedControlState.
+    AllControlStates = 0xffffffff
 };
 
 typedef unsigned ControlStates;