Observe visibility of password inputs, for HTTP-bad phase 1

third_party/WebKit/Source/core/html/forms/PasswordInputType.cpp

Index: third_party/WebKit/Source/core/html/forms/PasswordInputType.cpp
diff --git a/third_party/WebKit/Source/core/html/forms/PasswordInputType.cpp b/third_party/WebKit/Source/core/html/forms/PasswordInputType.cpp
index a2453cbdf41c9e27cfa9d9ff688359a1f745c3a4..e11d64f62181e0e4232e5236f4c8bd14c58901aa 100644
--- a/third_party/WebKit/Source/core/html/forms/PasswordInputType.cpp
+++ b/third_party/WebKit/Source/core/html/forms/PasswordInputType.cpp
@@ -33,8 +33,11 @@
 
 #include "core/InputTypeNames.h"
 #include "core/dom/Document.h"
+#include "core/frame/LocalFrame.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/forms/FormController.h"
+#include "public/platform/InterfaceProvider.h"
+#include "public/platform/modules/sensitive_input_visibility/sensitive_input_visibility_service.mojom-blink.h"
 #include "wtf/Assertions.h"
 #include "wtf/PassRefPtr.h"
 
@@ -45,6 +48,19 @@ InputType* PasswordInputType::create(HTMLInputElement& element)
     return new PasswordInputType(element);
 }
 
+DEFINE_TRACE(PasswordInputType)
+{
+    visitor->trace(m_visibilityObserver);
+    BaseTextInputType::trace(visitor);
+}
+
+PasswordInputType::PasswordInputType(HTMLInputElement& element)
+    : BaseTextInputType(element)
+    , m_visibilityObserver(new ElementVisibilityObserver(&element, WTF::bind(&PasswordInputType::onVisibilityChanged, wrapWeakPersistent(this))))
+{
+    m_visibilityObserver->start();
+}
+
 void PasswordInputType::countUsage()
 {
     countUsageIfVisible(UseCounter::InputTypePassword);
@@ -92,4 +108,13 @@ void PasswordInputType::disableSecureTextInput()
         element().document().setUseSecureKeyboardEntryWhenActive(false);
 }
 
+void PasswordInputType::onVisibilityChanged(bool isVisible)
+{
+    if (!isVisible || !element().document().frame())
+        return;
+    mojom::blink::SensitiveInputVisibilityServicePtr sensitiveInputServicePtr;
+    element().document().frame()->interfaceProvider()->getInterface(mojo::GetProxy(&sensitiveInputServicePtr));
+    sensitiveInputServicePtr->PasswordFieldVisible();
+}
+
 } // namespace blink