Do all OOLing in the views code. linux_views now builds clean with the clang plugin.

views/window/non_client_view.h

Index: views/window/non_client_view.h
diff --git a/views/window/non_client_view.h b/views/window/non_client_view.h
index db1daffb42002e482c987f081dbf3de8b351538b..d45c30ec666bea7898ece3dd03ef5723b2e5c41f 100644
--- a/views/window/non_client_view.h
+++ b/views/window/non_client_view.h
@@ -48,12 +48,12 @@ class NonClientFrameView : public View {
   // Returns true if this FrameView should always use the custom frame,
   // regardless of the system settings. An example is the Constrained Window,
   // which is a child window and must always provide its own frame.
-  virtual bool AlwaysUseCustomFrame() const { return false; }
+  virtual bool AlwaysUseCustomFrame() const;
 
   // Like AlwaysUseCustomFrame, returns true if this FrameView should always use
   // the native frame, regardless of theme settings. An example is popup/app
   // windows, which we do not ever want to show themed.
-  virtual bool AlwaysUseNativeFrame() const { return false; }
+  virtual bool AlwaysUseNativeFrame() const;
 
   virtual gfx::Rect GetWindowBoundsForClientBounds(
       const gfx::Rect& client_bounds) const = 0;