import changes from `dev' branch of rmottola/Arctic-Fox:

- Bug 1140148 - Update reftest manifests for Android 4.3 emulator; r=dminor (69b7ed099)
- Bug 742176 - Remove/reduce fuzz annotations for tests that no longer appear to be affected by bad overflow areas. r=ehsan (8fac68e26)
- pieces of older patches (6d4b30aed)
- Bug 1153574 - Re-enable Mulet reftests taskcluster-specific disables. r=ahal, a=test-only (72ed7dbc2)
- part of Bug 1138442 - Disable reftests on Mulet in parity with B2G/B2G (8baf07b3c)
- Bug 1073209 - Eliminate usage of CreateSamplingRestrictedDrawable on OS X. r=jrmuizel (86bee3fbc)
- Bug 1148889 - Fuzz some android tests. r=mstange (f63be045e)
- Mark unaccelerated antialiasing reftest failures with APZ as fuzzy. (bug 1157716, r=mstange) (4c0c0f034)
- Bug 1156197. Just use the return value of the cols DOM property for determining the default number of rendered columns for a textarea. r=ms2ger (16ab3064f)
- uniform emoji tests here (5a1e9802c)
- mulet was missing (433a50d93)
- Bug 1141511 - Disable some gtk2Widget-dependant reftests on Mulet. r=ahal (80d3cef05)
- Bug 1141607. Fix the initial value of outline-color to actually be correct. r=dbaron (309275f24)
- part of Bug 1138442 - Disable reftests on Mulet in parity with B2G/B2G (b7a3bb189)
- Bug 1141511 - Disable some gtk2Widget-dependant reftests on Mulet. r=ahal (1afac0742)
- Bug 1153845 - For CSS filters, make the primitive subregions big enough to contain the whole pre-filter visual overflow rect. r=roc (6d56dd6f9)
- annotate (090064379)
- boh (39f7c5aba)
- Bug 1170158 - Apply GTK2 reftest exceptions to GTK3. r=karlt (1f1299503)
- Bug 1165185 - Try to avoid invalidations when scrolling transformed elements. r=roc (d4693eb11)
- Bug 1165185 - Nudge layer prescale to integers. r=roc (2ac6881fc)
- remove spurious file (58fc9059b)
- Bug 1145730 - Restrict the async transforms applied to mask layers to those caused by fixed-position adjustment. r=kats (ebdcc1223)
- Bug 1146024 - Fix up input routing for APZ on Fennec. r=kats (85e8b249b)
- Bug 1146024 - Followup to fix non-android bustage on a CLOSED TREE. r=bustage (1ccd4a58f)
- Bug 1133905. Add some reftests. (89c9f9c8c)
- Bug 1133905. Make layout place scrollbars at the scroll position clamping scrollport size when one is set so that scrollbars are positioned properly on b2g. r=mstange (841279606)
- Bug 1155359 - Add a reftest; r=gw280 (a6e7aeb78)
- Bug 1155359 follow-up: Disable the test on B2G and Mulet (d709b7c54)
- Bug 1157726: Updated algorithm to match ICU implementation of support for bidi isolates. r=smontagu (96d9801e1)
- Bug 1154892 - mozinstall fails to install on Mac with paths which contain white spaces. r=chmanchester (1bddadcdd)
- Bug 1151908 - Updating our character property data with new Bidi info from Unicode 6.3. r=smontagu (c34f88172)
- Bug 817406 part 2 - Tests for propagating 'direction' to the viewport. (3bc7bfa40)
- Bug 1139306. Adjust heights of scrollable area so scrollbar sizes almost match in reftests now that RTL scrollbars correctly show in these reftests. r=smontagu (9c77c96ed)
- Bug 817406 part 3 - Increase the fuzz factors slightly on a few tests for bug 1133905. (22d8a4cbc)
- Bug 1148582. Part 3 follow up. Properly test if a scroll frame uses async scrolling when determining if it needs its clip put on its layer. r=mstange (13beb6a24)
- Fix tests that depend on synchronous scrolling. (bug 1140293, r=mstange,masayuki,kgilbert) (578d2ff1e)
- fix order because of mispatch (75279e185)
- Bug 1162009 - Add TOUCH_CANCEL sending on e10s. r=kats (0fc5574ac)
- Bug 1162179 - Don't create APZCTreeManagers for windows which aren't multiprocess. r=dvander (135d115e0)
- Enable APZ for all Desktop windows if E10s is enabled. (bug 1163115, r=kats) (354729297)
- Fix wheel events not applying root scroll delta overrides. (bug 1147223 part 1, r=kats) (6d650c449)
- fix patch order (08b9ad9bd)
- Improve bad APZ wheel pref detection in about:support. (bug 1147223 part 2, r=kats) (292fa3634)
- Bug 1151890 - Explicitly set a null MessageLoop for the APZ controller thread on OS X. r=mstange (a4fe37d78)
- Bug 1148868 - Put the APZ event thread on Mac behind a pref layers.async-pan-zoom.separate-event-thread that defaults to false. r=dvander (827a7cca7)
- Backed out changeset c5af69669855 (bug 1124084) for various regressions. (28d328c8d)
- Bug 1141819 - Don't implicitly dispatch a runnable to the main thread in RasterImage::StartDecoding. r=baku (1d1233319)
- Bug 1124088 - Rename decode-on-draw to decode-only-on-draw. r=tn (83c24cdb7)
- Bug 1149893 - Add a pref that makes us decode all images immediately. r=baku (6432ae587)
- Bug 1156401 - Fix ContextMenu handling when building Fennec with C++ APZ. r=kats, r=botond (dd784945c)
- Bug 1168629. Always make sure that there is at least one layer with the metrics for the root scroll frame/root element. r=botond,kats (06f19aef3)
- Bug 1154478 - Rename gfxPrefs::LayoutEventRegionsEnabled to LayoutEventRegionsEnabledDoNotUseDirectly. r=kats (68790b756)
- Don't expand displayports beyond the maximum texture size. (bug 1135907, r=kats) (805866f66)
- Bug 1138444 - Add Mulet detection for reftests. r=jgriffin (cc9378556)
- Use widgets for APZ checks, rather than gfxPrefs. (bug 1162064, r=kats,mstange) (40d2823a5)
- Bug 1151993 - Apply shrink-wrapping to block frames that are orthogonal to their containing block. r=smontagu (9fdd76008)
- Bug 1156021 - Use containing block inline-size (as appropriate for writing mode) to compute text-indent when specified as percentage. r=dbaron (c7fcb4193)
- Bug 1152941 - Always use unconstrained block-size when reflowing an orthogonal child block, to avoid incomplete reflow across orthogonal boundary. r=dbaron (5f4748c5a)
- Bug 1163238 - Don't set available block-size to unconstrained for orthogonal-block reflow state until after InitConstraints etc. r=dholbert (07ca784bf)
- Bug 1155798: Drop end-of-line whitespace from C++ files in layout/tables. (whitespace-only, no review, DONTBUILD) (6ad9c50d8)
- Bug 1155880 part 1: Rename nsITableLayoutStrategy::ComputeColumnWidths and associated comments to use "ISize" instead of "Width". r=jfkthame (c3bec937b)
- Bug 1155880 part 2: Rename nsTableColFrame Get/Set/ResetFinalWidth methods to use ISize instead of Width. r=jfkthame (1d2bfd990)
- Bug 1155880 part 3: Rename nsTableFrame::GetColumnWidth to use "ISize" instead of "Width". r=jfkthame (8a0d7a3c8)
- Bug 1159101 part 1 - Alter dependencies among headers of table struct frames. r=roc (b943ee1c3)
- Bug 1159101 part 2 - Add GetTableFrame() for table inner frames. r=roc (6641affa7)
- Bug 1145036 part 1 - Rename mBorderSpacingX/Y to mBorderSpacingCol/Row. r=heycam (7e91504af)
- Bug 1145036 part 2 - Rename nsTableFrame::GetCellSpacingX/Y to GetCol/RowSpacing. r=roc (b439569de)
- Bug 1159101 part 3 - Replace most of nsTableFrame::GetTableFrame() usage with new GetTableFrame() methods. r=roc (4bdf27d00)
- Bug 1159990 - Add TableArea struct and replace nsIntRect with it for table damage area. r=roc (ebca44c12)

layout/ipc/RenderFrameParent.cpp

@@ -318,6 +318,7 @@ RenderFrameParent::RenderFrameParent(nsFrameLoader* aFrameLoader,
   , mFrameLoader(aFrameLoader)
   , mFrameLoaderDestroyed(false)
   , mBackgroundColor(gfxRGBA(1, 1, 1))
+  , mAsyncPanZoomEnabled(false)
 {
   *aSuccess = false;
   if (!mFrameLoader) {
@@ -327,6 +328,9 @@ RenderFrameParent::RenderFrameParent(nsFrameLoader* aFrameLoader,
   *aId = 0;
 
   nsRefPtr<LayerManager> lm = GetFrom(mFrameLoader);
+
+  mAsyncPanZoomEnabled = lm && lm->AsyncPanZoomEnabled();
+
   // Perhaps the document containing this frame currently has no presentation?
   if (lm && lm->GetBackendType() == LayersBackend::LAYERS_CLIENT) {
     *aTextureFactoryIdentifier =
@@ -344,7 +348,7 @@ RenderFrameParent::RenderFrameParent(nsFrameLoader* aFrameLoader,
         static_cast<ClientLayerManager*>(lm.get());
       clientManager->GetRemoteRenderer()->SendNotifyChildCreated(mLayersId);
     }
-    if (gfxPrefs::AsyncPanZoomEnabled()) {
+    if (mAsyncPanZoomEnabled) {
       mContentController = new RemoteContentController(this);
       CompositorParent::SetControllerForLayerTree(mLayersId, mContentController);
     }
@@ -365,7 +369,7 @@ RenderFrameParent::GetApzcTreeManager()
   // created and the static getter knows which CompositorParent is
   // instantiated with this layers ID. That's why try to fetch it when
   // we first need it and cache the result.
-  if (!mApzcTreeManager && gfxPrefs::AsyncPanZoomEnabled()) {
+  if (!mApzcTreeManager && mAsyncPanZoomEnabled) {
     mApzcTreeManager = CompositorParent::GetAPZCTreeManager(mLayersId);
   }
   return mApzcTreeManager.get();