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 fcb8f38265b5b4b7b56aaed89d681fdb430565ad..b3d8899af65e5a7bba3b3764956c68690af416ef 100644
--- a/cc/scrollbar_layer_impl.cc
+++ b/cc/scrollbar_layer_impl.cc
@@ -66,19 +66,18 @@ 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());
 }
 
 void ScrollbarLayerImpl::appendQuads(QuadSink& quadSink, AppendQuadsData& appendQuadsData)
 {
     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);
@@ -103,8 +102,8 @@ 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()