Reland of move javaEnabled setting. (patchset #1 id:1 of...

Reland of move javaEnabled setting. (patchset #1 id:1 of https://codereview.chromium.org/1318703002/ )

Reason for revert:
Relanding because this had no impact. The bug disappeared and re-appeared regardless of this CL.

Original issue's description:
> Revert of Remove javaEnabled setting. (patchset #1 id:1 of https://codereview.chromium.org/1306403003/ )
> 
> Reason for revert:
> Reverting to see whether this fixes the compilation.
> 
> Original issue's description:
> > Remove javaEnabled setting.
> > 
> > As of M45, NPAPI support is (almost) completely gone, so Java will never
> > be supported anyway.
> > 
> > BUG=none
> > 
> > Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=201211
> 
> TBR=haraken@chromium.org,dcheng@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=none
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=201217

TBR=haraken@chromium.org,dcheng@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=none

Review URL: https://codereview.chromium.org/1319673003

git-svn-id: svn://svn.chromium.org/blink/trunk@201218 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/fast/plugins/plugin-placeholder-explicit-size.html

@@ -18,8 +18,6 @@ applet, embed, object { display: block; margin: 10px; }
 </template>
 
 <script>
-internals.settings.setJavaEnabled(true);
-
 var templateContent = document.getElementById('placeholder-template').content;
 Array.prototype.forEach.call(document.querySelectorAll("applet, embed, object"), function(plugin) {
     internals.forcePluginPlaceholder(plugin, templateContent);

third_party/WebKit/LayoutTests/fast/plugins/plugin-placeholder.html

@@ -18,8 +18,6 @@ applet, embed, object { display: block; margin: 10px; }
 </template>
 
 <script>
-internals.settings.setJavaEnabled(true);
-
 var templateContent = document.getElementById('placeholder-template').content;
 Array.prototype.forEach.call(document.querySelectorAll("applet, embed, object"), function(plugin) {
     internals.forcePluginPlaceholder(plugin, templateContent);

third_party/WebKit/Source/core/frame/Settings.in

@@ -266,7 +266,6 @@ backgroundHtmlParserPendingTokenLimit type=unsigned, initial=0
 # be loaded later.
 doHtmlPreloadScanning initial=true
 
-javaEnabled initial=false
 pluginsEnabled initial=false
 
 viewportEnabled initial=false, invalidate=ViewportDescription

third_party/WebKit/Source/core/html/HTMLAppletElement.cpp

@@ -92,20 +92,12 @@ bool HTMLAppletElement::layoutObjectIsNeeded(const ComputedStyle& style)
 
 LayoutObject* HTMLAppletElement::createLayoutObject(const ComputedStyle& style)
 {
-    if (!canEmbedJava() || openShadowRoot())
-        return LayoutObject::createObject(this, style);
-
-    if (usePlaceholderContent())
-        return new LayoutBlockFlow(this);
-
-    return new LayoutApplet(this);
+    return LayoutObject::createObject(this, style);
 }
 
 LayoutPart* HTMLAppletElement::layoutPartForJSBindings() const
 {
-    if (!canEmbedJava())
-        return nullptr;
-    return HTMLPlugInElement::layoutPartForJSBindings();
+    return nullptr;
 }
 
 LayoutPart* HTMLAppletElement::existingLayoutPart() const
@@ -209,21 +201,6 @@ void HTMLAppletElement::updateWidgetInternal()
     }
 }
 
-bool HTMLAppletElement::canEmbedJava() const
-{
-    if (document().isSandboxed(SandboxPlugins))
-        return false;
-
-    Settings* settings = document().settings();
-    if (!settings)
-        return false;
-
-    if (!settings->javaEnabled())
-        return false;
-
-    return true;
-}
-
 bool HTMLAppletElement::canEmbedURL(const KURL& url) const
 {
     if (!document().securityOrigin()->canDisplay(url)) {

third_party/WebKit/Source/core/html/HTMLAppletElement.h

@@ -50,7 +50,6 @@ private:
     LayoutPart* existingLayoutPart() const override;
     void updateWidgetInternal() override;
 
-    bool canEmbedJava() const;
     bool canEmbedURL(const KURL&) const;
 
     bool shouldRegisterAsNamedItem() const override { return true; }

third_party/WebKit/Source/core/html/HTMLPlugInElement.cpp

@@ -619,7 +619,7 @@ bool HTMLPlugInElement::pluginIsLoadable(const KURL& url, const String& mimeType
     if (!settings)
         return false;
 
-    if (MIMETypeRegistry::isJavaAppletMIMEType(mimeType) && !settings->javaEnabled())
+    if (MIMETypeRegistry::isJavaAppletMIMEType(mimeType))
         return false;
 
     if (document().isSandboxed(SandboxPlugins))

third_party/WebKit/Source/modules/plugins/NavigatorPlugins.cpp

@@ -60,7 +60,7 @@ DOMMimeTypeArray* NavigatorPlugins::mimeTypes(Navigator& navigator)
 // static
 bool NavigatorPlugins::javaEnabled(Navigator& navigator)
 {
-    return NavigatorPlugins::from(navigator).javaEnabled(navigator.frame());
+    return false;
 }
 
 DOMPluginArray* NavigatorPlugins::plugins(LocalFrame* frame) const
@@ -77,14 +77,6 @@ DOMMimeTypeArray* NavigatorPlugins::mimeTypes(LocalFrame* frame) const
     return m_mimeTypes.get();
 }
 
-bool NavigatorPlugins::javaEnabled(LocalFrame* frame) const
-{
-    if (!frame || !frame->settings())
-        return false;
-
-    return frame->settings()->javaEnabled();
-}
-
 DEFINE_TRACE(NavigatorPlugins)
 {
     visitor->trace(m_plugins);

third_party/WebKit/Source/modules/plugins/NavigatorPlugins.h

@@ -36,7 +36,6 @@ private:
 
     DOMPluginArray* plugins(LocalFrame*) const;
     DOMMimeTypeArray* mimeTypes(LocalFrame*) const;
-    bool javaEnabled(LocalFrame*) const;
 
     mutable Member<DOMPluginArray> m_plugins;
     mutable Member<DOMMimeTypeArray> m_mimeTypes;

third_party/WebKit/Source/web/WebSettingsImpl.cpp

@@ -344,11 +344,6 @@ void WebSettingsImpl::setTextAreasAreResizable(bool areResizable)
     m_settings->setTextAreasAreResizable(areResizable);
 }
 
-void WebSettingsImpl::setJavaEnabled(bool enabled)
-{
-    m_settings->setJavaEnabled(enabled);
-}
-
 void WebSettingsImpl::setAllowScriptsToCloseWindows(bool allow)
 {
     m_settings->setAllowScriptsToCloseWindows(allow);

third_party/WebKit/Source/web/WebSettingsImpl.h

@@ -106,7 +106,6 @@ public:
     void setImagesEnabled(bool) override;
     void setInlineTextBoxAccessibilityEnabled(bool) override;
     void setInvertViewportScrollOrder(bool) override;
-    void setJavaEnabled(bool) override;
     void setJavaScriptCanAccessClipboard(bool) override;
     void setJavaScriptCanOpenWindowsAutomatically(bool) override;
     void setJavaScriptEnabled(bool) override;

third_party/WebKit/public/web/WebSettings.h

@@ -181,7 +181,6 @@ public:
     virtual void setImagesEnabled(bool) = 0;
     virtual void setInlineTextBoxAccessibilityEnabled(bool) = 0;
     virtual void setInvertViewportScrollOrder(bool) = 0;
-    virtual void setJavaEnabled(bool) = 0;
     virtual void setJavaScriptCanAccessClipboard(bool) = 0;
     virtual void setJavaScriptCanOpenWindowsAutomatically(bool) = 0;
     virtual void setJavaScriptEnabled(bool) = 0;