Add click-tracking removal patch

commit 8d0b67d87462d537af6f7eb0cf445a2f66d5dd5c

Author: csagan5 <32685696+csagan5@users.noreply.github.com>

Date:   Sun Oct 15 18:01:18 2017 +0200

    Remove click tracking from google search results

diff --git a/third_party/WebKit/Source/core/dom/ContainerNode.cpp b/third_party/WebKit/Source/core/dom/ContainerNode.cpp

index 1bada98..fb15e01 100644

--- a/third_party/WebKit/Source/core/dom/ContainerNode.cpp

+++ b/third_party/WebKit/Source/core/dom/ContainerNode.cpp

@@ -58,6 +58,8 @@

 #include "platform/bindings/RuntimeCallStats.h"

 #include "platform/bindings/V8PerIsolateData.h"

+#include "base/logging.h"

+

 namespace blink {

 using namespace HTMLNames;

@@ -1391,6 +1393,26 @@ StaticElementList* ContainerNode::QuerySelectorAll(

   return QuerySelectorAll(selectors, ASSERT_NO_EXCEPTION);

 }

+// this logic here will cleanup click tracking from hyperlink nodes on search results

+static void applyInsertCustomization(Document *document, Node *c) {

+  if (c->getNodeType() != Node::kElementNode)

+	return;

+  Element *element = ToElement(c);

+

+  // filter out non-hyperlink nodes

+  if (element->tagName() != "A")

+	return;

+

+  // determine whether this is a Google search results page

+  WTF::String domain = document->GetSecurityOrigin()->Domain();

+  size_t pos = domain.Find(".google.");

+  if ((pos != WTF::kNotFound) && (domain.length() - pos - 8 < 4)) {

+    //LOG(INFO) << "sanitizing Google search results hyperlink, href: " << element->getAttribute("href") << " onmousedown: " << element->getAttribute("onmousedown");

+    // remove attribute

+    element->removeAttribute("onmousedown");

+  }

+}

+

 static void DispatchChildInsertionEvents(Node& child) {

   if (child.IsInShadowTree())

     return;

@@ -1402,6 +1424,10 @@ static void DispatchChildInsertionEvents(Node& child) {

   Node* c = &child;

   Document* document = &child.GetDocument();

+  // csagan5: no extension support in Chrom* for Android? no problem! we add custom code directly here

+  if (c->parentNode())

+      applyInsertCustomization(document, c);

+

   if (c->parentNode() &&

       document->HasListenerType(Document::kDOMNodeInsertedListener))

     c->DispatchScopedEvent(MutationEvent::Create(