5 files changed, 35 insertions, 0 deletions
diff --git a/layout/base/nsDisplayList.cpp b/layout/base/nsDisplayList.cpp
index c830891a5..a55ec1e39 100644
--- a/layout/base/nsDisplayList.cpp
+++ b/layout/base/nsDisplayList.cpp
@@ -3808,12 +3808,14 @@ nsDisplayLayerEventRegions::AddFrame(nsDisplayListBuilder* aBuilder,
     // region on scrollbar frames that won't be placed in their own layer. See
     // bug 1213324 for details.
     mDispatchToContentHitRegion.Or(mDispatchToContentHitRegion, borderBox);
+    mDispatchToContentHitRegion.SimplifyOutward(8);
   } else if (aFrame->GetType() == nsGkAtoms::objectFrame) {
     // If the frame is a plugin frame and wants to handle wheel events as
     // default action, we should add the frame to dispatch-to-content region.
     nsPluginFrame* pluginFrame = do_QueryFrame(aFrame);
     if (pluginFrame && pluginFrame->WantsToHandleWheelEventAsDefaultAction()) {
       mDispatchToContentHitRegion.Or(mDispatchToContentHitRegion, borderBox);
+      mDispatchToContentHitRegion.SimplifyOutward(8);
     }
   }
 
@@ -3850,6 +3852,7 @@ nsDisplayLayerEventRegions::AddFrame(nsDisplayListBuilder* aBuilder,
     }
     if (alreadyHadRegions) {
       mDispatchToContentHitRegion.OrWith(CombinedTouchActionRegion());
+      mDispatchToContentHitRegion.SimplifyOutward(8);
     }
   }
 }
@@ -3859,6 +3862,7 @@ nsDisplayLayerEventRegions::AddInactiveScrollPort(const nsRect& aRect)
 {
   mHitRegion.Or(mHitRegion, aRect);
   mDispatchToContentHitRegion.Or(mDispatchToContentHitRegion, aRect);
+  mDispatchToContentHitRegion.SimplifyOutward(8);
 }
 
 bool
diff --git a/layout/reftests/text-svgglyphs/reftest.list b/layout/reftests/text-svgglyphs/reftest.list
index 6f328ab73..7ff341f42 100644
--- a/layout/reftests/text-svgglyphs/reftest.list
+++ b/layout/reftests/text-svgglyphs/reftest.list
@@ -21,3 +21,4 @@ pref(gfx.font_rendering.opentype_svg.enabled,true)    fails == svg-glyph-mask.sv
 pref(gfx.font_rendering.opentype_svg.enabled,true)    == svg-glyph-paint-server.svg svg-glyph-paint-server-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    == svg-glyph-transform.svg svg-glyph-transform-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    == svg-glyph-extents.html svg-glyph-extents-ref.html
+pref(gfx.font_rendering.opentype_svg.enabled,true)    == svg-glyph-compressed.html svg-glyph-compressed-ref.html
diff --git a/layout/reftests/text-svgglyphs/resources/svg-gz.ttf b/layout/reftests/text-svgglyphs/resources/svg-gz.ttf
new file mode 100644
index 000000000..3a9660224
--- /dev/null
+++ b/layout/reftests/text-svgglyphs/resources/svg-gz.ttf
diff --git a/layout/reftests/text-svgglyphs/svg-glyph-compressed-ref.html b/layout/reftests/text-svgglyphs/svg-glyph-compressed-ref.html
new file mode 100644
index 000000000..9bbfeb748
--- /dev/null
+++ b/layout/reftests/text-svgglyphs/svg-glyph-compressed-ref.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html><head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8"><title>Test for compressed SVG glyphs</title>
+<style>
+  @font-face {
+    font-family: test;
+    src: url(resources/svg.woff); /* uses uncompressed SVG documents */
+  }
+  html { width: 400px; height: 400px; background-color: white; }
+  body { margin: 0; }
+  div { font: 200px test; color: fuchsia; line-height: 1; stroke: none; }
+</style>
+</head><body><div>abcdefg</div>
+<div>LMNOPQR</div>
+</body></html>
+\ No newline at end of file
diff --git a/layout/reftests/text-svgglyphs/svg-glyph-compressed.html b/layout/reftests/text-svgglyphs/svg-glyph-compressed.html
new file mode 100644
index 000000000..e8123bba6
--- /dev/null
+++ b/layout/reftests/text-svgglyphs/svg-glyph-compressed.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html><head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8"><title>Test for compressed SVG glyphs</title>
+<style>
+  @font-face {
+    font-family: test;
+    src: url(resources/svg-gz.ttf); /* copy of svg.woff using gzip-compressed SVG documents */
+  }
+  html { width: 400px; height: 400px; background-color: white; }
+  body { margin: 0; }
+  div { font: 200px test; color: fuchsia; line-height: 1; stroke: none; }
+</style>
+</head><body><div>abcdefg</div>
+<div>LMNOPQR</div>
+</body></html>
+\ No newline at end of file