cc: Put context-loss tests in layer_tree_host_unittest_context.cc

cc/test/fake_web_scrollbar_theme_geometry.h

Index: cc/test/fake_web_scrollbar_theme_geometry.h
diff --git a/cc/test/fake_web_scrollbar_theme_geometry.h b/cc/test/fake_web_scrollbar_theme_geometry.h
index 45bd1b7fd894ba405b777b424d3dda591e7caac4..6c3d38cb6198f95b7d453fb62ea5165a103b5d46 100644
--- a/cc/test/fake_web_scrollbar_theme_geometry.h
+++ b/cc/test/fake_web_scrollbar_theme_geometry.h
@@ -12,7 +12,7 @@ namespace cc {
 
 class FakeWebScrollbarThemeGeometry : public WebKit::WebScrollbarThemeGeometry {
 public:
-    static scoped_ptr<WebKit::WebScrollbarThemeGeometry> create() { return scoped_ptr<WebKit::WebScrollbarThemeGeometry>(new FakeWebScrollbarThemeGeometry()); }
+    static scoped_ptr<WebKit::WebScrollbarThemeGeometry> create(bool hasThumb) { return scoped_ptr<WebKit::WebScrollbarThemeGeometry>(new FakeWebScrollbarThemeGeometry(hasThumb)); }
 
     virtual WebKit::WebScrollbarThemeGeometry* clone() const OVERRIDE;
 
@@ -32,6 +32,10 @@ public:
     virtual WebKit::WebRect forwardButtonEndRect(WebKit::WebScrollbar*) OVERRIDE;
     virtual WebKit::WebRect constrainTrackRectToTrackPieces(WebKit::WebScrollbar*, const WebKit::WebRect&) OVERRIDE;
     virtual void splitTrack(WebKit::WebScrollbar*, const WebKit::WebRect& track, WebKit::WebRect& startTrack, WebKit::WebRect& thumb, WebKit::WebRect& endTrack) OVERRIDE;
+
+protected:
+    FakeWebScrollbarThemeGeometry(bool hasThumb) : m_hasThumb(hasThumb) { }
+    bool m_hasThumb;
 };
 
 }  // namespace cc