Release 65.0.3325.190

CHANGELOG.md

@@ -1,3 +1,7 @@
+# 65.0.3325.190
+* block some Canvas and AudioBuffer APIs mostly used for fingerprinting
+* updated adblock filters
+
 # 65.0.3325.176
 * block plugins enumeration API
 * block battery API

patches/BRM042_Canvas-fingerprinting-mitigations-via-IDL.patch

@@ -0,0 +1,67 @@
+From: csagan5 <32685696+csagan5@users.noreply.github.com>
+Date: Sat, 24 Mar 2018 05:18:03 +0100
+Subject: Canvas: fingerprinting mitigations via IDL
+
+Disable toDataURL, toBlob, getImageData and webGL renderering info
+---
+ third_party/WebKit/Source/core/html/canvas/HTMLCanvasElement.idl      | 4 ++--
+ .../Source/modules/canvas/canvas2d/CanvasRenderingContext2D.idl       | 4 ++--
+ third_party/WebKit/Source/modules/webgl/WebGLDebugRendererInfo.cpp    | 4 ++--
+ 3 files changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/third_party/WebKit/Source/core/html/canvas/HTMLCanvasElement.idl b/third_party/WebKit/Source/core/html/canvas/HTMLCanvasElement.idl
+--- a/third_party/WebKit/Source/core/html/canvas/HTMLCanvasElement.idl
++++ b/third_party/WebKit/Source/core/html/canvas/HTMLCanvasElement.idl
+@@ -36,9 +36,9 @@ interface HTMLCanvasElement : HTMLElement
+     // Note: The arguments argument is variadic in the spec, but not here as
+     // only one extra argument is actually used.
+     // FIXME: type should not have a default value.
+-    [MeasureAs=CanvasToDataURL, RaisesException] DOMString toDataURL(optional DOMString type = null, optional any arguments);
++    //[MeasureAs=CanvasToDataURL, RaisesException] DOMString toDataURL(optional DOMString type = null, optional any arguments);
+
+-    [MeasureAs=CanvasToBlob, RaisesException] void toBlob(BlobCallback _callback, optional DOMString type = null, optional any arguments);
++    //[MeasureAs=CanvasToBlob, RaisesException] void toBlob(BlobCallback _callback, optional DOMString type = null, optional any arguments);
+ };
+
+ // https://html.spec.whatwg.org/multipage/canvas.html#blobcallback
+diff --git a/third_party/WebKit/Source/modules/canvas/canvas2d/CanvasRenderingContext2D.idl b/third_party/WebKit/Source/modules/canvas/canvas2d/CanvasRenderingContext2D.idl
+--- a/third_party/WebKit/Source/modules/canvas/canvas2d/CanvasRenderingContext2D.idl
++++ b/third_party/WebKit/Source/modules/canvas/canvas2d/CanvasRenderingContext2D.idl
+@@ -110,7 +110,7 @@ interface CanvasRenderingContext2D {
+     // text (see also the CanvasDrawingStyles interface)
+     void fillText(DOMString text, unrestricted double x, unrestricted double y, optional unrestricted double maxWidth);
+     void strokeText(DOMString text, unrestricted double x, unrestricted double y, optional unrestricted double maxWidth);
+-    TextMetrics measureText(DOMString text);
++    //TextMetrics measureText(DOMString text);
+
+     // drawing images
+     [CallWith=ScriptState, RaisesException] void drawImage(CanvasImageSource image, unrestricted double x, unrestricted double y);
+@@ -125,7 +125,7 @@ interface CanvasRenderingContext2D {
+     // pixel manipulation
+     [RaisesException] ImageData createImageData(ImageData imagedata);
+     [RaisesException] ImageData createImageData(long sw, long sh);
+-    [RaisesException] ImageData getImageData(long sx, long sy, long sw, long sh);
++    //[RaisesException] ImageData getImageData(long sx, long sy, long sw, long sh);
+     [RaisesException] void putImageData(ImageData imagedata, long dx, long dy);
+     [RaisesException] void putImageData(ImageData imagedata, long dx, long dy, long dirtyX, long dirtyY, long dirtyWidth, long dirtyHeight);
+
+diff --git a/third_party/WebKit/Source/modules/webgl/WebGLDebugRendererInfo.cpp b/third_party/WebKit/Source/modules/webgl/WebGLDebugRendererInfo.cpp
+--- a/third_party/WebKit/Source/modules/webgl/WebGLDebugRendererInfo.cpp
++++ b/third_party/WebKit/Source/modules/webgl/WebGLDebugRendererInfo.cpp
+@@ -37,11 +37,11 @@ WebGLExtensionName WebGLDebugRendererInfo::GetName() const {
+
+ WebGLDebugRendererInfo* WebGLDebugRendererInfo::Create(
+     WebGLRenderingContextBase* context) {
+-  return new WebGLDebugRendererInfo(context);
++  return nullptr;
+ }
+
+ bool WebGLDebugRendererInfo::Supported(WebGLRenderingContextBase*) {
+-  return true;
++  return false;
+ }
+
+ const char* WebGLDebugRendererInfo::ExtensionName() {
+-- 
+2.7.4
+