cc: Use gfx:: Geometry types for positions, bounds, and related things.

cc/scrollbar_layer_impl.cc

Index: cc/scrollbar_layer_impl.cc
diff --git a/cc/scrollbar_layer_impl.cc b/cc/scrollbar_layer_impl.cc
index 180fd82b9eca965b0c6016f86c0d5e42bab0fe99..271ee26334e23413ab4f9ead0d04672019a6862b 100644
--- a/cc/scrollbar_layer_impl.cc
+++ b/cc/scrollbar_layer_impl.cc
@@ -66,10 +66,9 @@ void ScrollbarLayerImpl::setScrollbarData(WebScrollbar* scrollbar)
     m_geometry->update(scrollbar);
 }
 
-static FloatRect toUVRect(const WebRect& r, const IntRect& bounds)
+static gfx::RectF toUVRect(const gfx::Rect& r, const gfx::Rect& bounds)
 {
-    return FloatRect(static_cast<float>(r.x) / bounds.width(), static_cast<float>(r.y) / bounds.height(),
-                     static_cast<float>(r.width) / bounds.width(), static_cast<float>(r.height) / bounds.height());
+    return gfx::ScaleRect(r, 1.0 / bounds.width(), 1.0 / bounds.height());
 }
 
 IntRect ScrollbarLayerImpl::scrollbarLayerRectToContentRect(const WebRect& layerRect) const
@@ -85,9 +84,9 @@ void ScrollbarLayerImpl::appendQuads(QuadSink& quadSink, AppendQuadsData& append
 {
     bool premultipledAlpha = false;
     bool flipped = false;
-    FloatRect uvRect(0, 0, 1, 1);
-    IntRect boundsRect(IntPoint(), bounds());
-    IntRect contentBoundsRect(IntPoint(), contentBounds());
+    gfx::RectF uvRect(0, 0, 1, 1);
+    gfx::Rect boundsRect(gfx::Point(), bounds());
+    gfx::Rect contentBoundsRect(gfx::Point(), contentBounds());
 
     SharedQuadState* sharedQuadState = quadSink.useSharedQuadState(createSharedQuadState());
     appendDebugBorderQuad(quadSink, sharedQuadState, appendQuadsData);
@@ -112,8 +111,8 @@ void ScrollbarLayerImpl::appendQuads(QuadSink& quadSink, AppendQuadsData& append
 
     // Order matters here: since the back track texture is being drawn to the entire contents rect, we must append it after the thumb and
     // fore track quads. The back track texture contains (and displays) the buttons.
-    if (!contentBoundsRect.isEmpty())
-        quadSink.append(TextureDrawQuad::create(sharedQuadState, IntRect(contentBoundsRect), m_backTrackResourceId, premultipledAlpha, uvRect, flipped).PassAs<DrawQuad>(), appendQuadsData);
+    if (!contentBoundsRect.IsEmpty())
+        quadSink.append(TextureDrawQuad::create(sharedQuadState, gfx::Rect(contentBoundsRect), m_backTrackResourceId, premultipledAlpha, uvRect, flipped).PassAs<DrawQuad>(), appendQuadsData);
 }
 
 void ScrollbarLayerImpl::didLoseContext()