Add a "Save password" item to the context menu.

content/renderer/context_menu_params_builder.cc

Index: content/renderer/context_menu_params_builder.cc
diff --git a/content/renderer/context_menu_params_builder.cc b/content/renderer/context_menu_params_builder.cc
index 1e4df2e7a4667cf934cdc5c3f481af7ca2757115..18e141c73ae2d334d6cbef9bc004dc368cedd50f 100644
--- a/content/renderer/context_menu_params_builder.cc
+++ b/content/renderer/context_menu_params_builder.cc
@@ -12,6 +12,7 @@
 #include "content/renderer/history_serialization.h"
 #include "content/renderer/menu_item_builder.h"
 #include "third_party/WebKit/public/web/WebElement.h"
+#include "third_party/WebKit/public/web/WebInputElement.h"
 #include "third_party/WebKit/public/web/WebNode.h"
 
 namespace content {
@@ -83,6 +84,12 @@ ContextMenuParams ContextMenuParamsBuilder::Build(
         &params.security_info.signed_certificate_timestamp_ids);
   }
 
+  // Find out if this node is a password field.

[msramek, 2015/05/19 09:42:08]

Is it OK to add a field to ContextMenuParams that is not directly represented in
blink::WebContextMenuData? Or should I commit to Webkit first?

[Mike West, 2015/05/19 10:11:22]

I'd suggest adding the logic to Blink first (you'll want to look at something
around 'ContextMenuClientImpl::showContextMenu') rather than reaching down from
the embedder. If nothing else, that will allow you to use safe casting methods
that RELEASE_ASSERT if you screw things up. :)

[msramek, 2015/05/19 12:39:48]

Done in https://codereview.chromium.org/1137733004 .

+  params.is_password_field =
+      data.node.isElementNode() &&
+      data.node.toConst<blink::WebElement>().hasHTMLTagName("input") &&
+      data.node.toConst<blink::WebInputElement>().isPasswordField();
+
   return params;
 }