fischman

$ nc videos-cdn.mozilla.net 80
OPTIONS /serv/mozhacks/demos/resources/immersivevideo/dubai.r.webm HTTP/1.1
Host: videos-cdn.mozilla.net
Connection: keep-alive
Access-Control-Request-Method: GET
Origin: http://fiddle.jshell.net
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1164.0 Safari/537.1
Access-Control-Request-Headers: range
Accept: */*
Referer: http://fiddle.jshell.net/QWChG/2/show/

fischman

<?php

header("Access-Control-Allow-Origin: *");

if ($_SERVER['REQUEST_METHOD'] == "OPTIONS") {
    header("Access-Control-Allow-Methods: GET");
    header("Access-Control-Allow-Headers: origin, accept-encoding, referer, range");
    exit;
}

fischman

(gdb) bt
#0  0x00007f2cb89daa32 in WTF::RefPtr<WebCore::GraphicsContext3D>::get (this=0x20) at ../../third_party/WebKit/Source/WTF/wtf/RefPtr.h:58
#1  0x00007f2cb89da8ea in WebCore::CCGraphicsContext::context3D (this=0x0) at ../../third_party/WebKit/Source/WebCore/platform/graphics/chromium/cc/CCGraphicsContext.h:47
#2  0x00007f2cb89da874 in WebKit::WebLayerTreeView::context (this=0x7f2cb496faf8) at ../../third_party/WebKit/Source/WebKit/chromium/src/WebLayerTreeView.cpp:170
#3  0x00007f2cb8a17096 in WebKit::WebViewImpl::graphicsContext3D (this=0x7f2cb496f880) at ../../third_party/WebKit/Source/WebKit/chromium/src/WebViewImpl.cpp:3659
#4  0x00007f2cc083065a in RenderViewImpl::createMediaPlayer (this=0x7f2cae18d000, frame=0x7f2cad4d6e00, client=0x7f2cac8a43d0) at ../../content/renderer/render_view_impl.cc:2369
#5  0x00007f2cb89db5bb in WebKit::createWebMediaPlayer (client=0x7f2cac8a43d0, frame=0x7f2caccb6000) at ../../third_party/WebKit/Source/WebKit/chromium/src/WebMediaPlayerClientImpl.cpp:56
#6  0x00007f2cb

fischman

diff --git a/Source/WebKit/chromium/src/WebLayerTreeView.cpp b/Source/WebKit/chromium/src/WebLayerTreeView.cpp
index fed3db9..7de17fd 100644
--- a/Source/WebKit/chromium/src/WebLayerTreeView.cpp
+++ b/Source/WebKit/chromium/src/WebLayerTreeView.cpp
@@ -167,7 +167,10 @@ void WebLayerTreeView::finishAllRendering()
 
 WebGraphicsContext3D* WebLayerTreeView::context()
 {
-    return GraphicsContext3DPrivate::extractWebGraphicsContext3D(m_private->layerTreeHost()->context()->context3D());
+    WebCore::CCGraphicsContext* c = m_private->layerTreeHost()->context();

fischman

commit 7dbe5ab20cdf7b014f1697d97908dd81100ca878
Author: Ami Fischman <fischman@chromium.org>
Date:   Tue Jun 12 18:18:47 2012

    Better impl of MakeCurrent

diff --git a/content/common/gpu/media/gpu_video_decode_accelerator.cc b/content/common/gpu/media/gpu_video_decode_accelerator.cc
index 39dd80f..e782235 100644
--- a/content/common/gpu/media/gpu_video_decode_accelerator.cc
+++ b/content/common/gpu/media/gpu_video_decode_accelerator.cc

fischman

<class 'google.appengine.api.datastore_errors.Timeout'>: The datastore operation timed out, or the data was temporarily unavailable.
Traceback (most recent call last):
  File "/base/data/home/apps/chromium-status/r118900.356331869415836973/main.py", line 74, in <module>
    base_page.bootstrap()
  File "/base/data/home/apps/chromium-status/r118900.356331869415836973/base_page.py", line 132, in bootstrap
    config = db.GqlQuery('SELECT * FROM GlobalConfig').get()
  File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/db/__init__.py", line 2101, in get
    return results.next()
  File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/db/__init__.py", line 2313, in next
    return self.__model_class.from_entity(self.__iterator.next())

fischman

fischman@trap ~/src/chromium/src/third_party/WebKit {b92881} $ echo -e "file://`pwd`/LayoutTests/jquery/traversing.html\nfile://`pwd`/LayoutTests/media/video-poster-blocked-by-willsendrequest.html" | ../../ninja/Debug/DumpRenderTree --pixel-tests -
Xlib:  extension "RANDR" missing on display ":0.0".
ALERT: 198 tests of 198 passed, 0 failed.
Content-Type: text/plain

#EOF
#EOF
#EOF
Content-Type: text/plain
Test for https://bugs.webkit.org/show_bug.cgi?id=65270. 

fischman

=================================================================
==25091== ERROR: AddressSanitizer heap-use-after-free on address 0x7f1d93f98188 at pc 0x7f1d85f33161 bp 0x7f1d7bc16e30 sp 0x7f1d7bc16e28
READ of size 8 at 0x7f1d93f98188 thread T4
    #0 0x7f1d85f33160 in render_thread /home/fischman/va-craxy/vdpau-driver/src/vdpau_video_x11.c:85
    #1 0x7f1de231613b in __asan::AsanThread::ThreadStart() ??:0
0x7f1d93f98188 is located 264 bytes inside of 2304-byte region [0x7f1d93f98080,0x7f1d93f98980)
freed by thread T0 here:
    #0 0x7f1de23131b5 in __interceptor_realloc ??:0
    #1 0x7f1d85f0e38a in object_heap_expand /home/fischman/va-craxy/vdpau-driver/src/object_heap.c:62
    #2 0x7f1d85f0e63b in object_heap_allocate /home/fischman/va-craxy/vdpau-driver/src/object_heap.c:104

fischman

fischman@fischman-linux ~/t $ GYP_DEFINES="base=0" GYP_GENERATORS=ninja ~/src/chromium/src/tools/gyp/gyp --depth=. t.gyp  && grep NEGATION out/Default/obj/MyTarget.ninja 
cflags = -DNEGATION_1
fischman@fischman-linux ~/t $ GYP_DEFINES="base=1" GYP_GENERATORS=ninja ~/src/chromium/src/tools/gyp/gyp --depth=. t.gyp  && grep NEGATION out/Default/obj/MyTarget.ninja 
cflags = -DNEGATION_0

fischman

Keybase proof

I hereby claim:

• I am fischman on github.
• I am ami (https://keybase.io/ami) on keybase.
• I have a public key whose fingerprint is 3BA9 6B9A BF5C 97BE D624 D409 A96B 2854 0A01 71B9

To claim this, I am signing this object: