Implementation of brand-color

Add APIs
- WebFrame::brandColor() to get the brand color.
- WebFrameClinet::didChangeBrandColor to notify the brand color change.

BUG=383941

Intent to implement and ship link
https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/nzRY-h_-_ig

Review URL: https://codereview.chromium.org/329943004

git-svn-id: svn://svn.chromium.org/blink/trunk@176142 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/dom/Document.cpp

@@ -51,6 +51,7 @@
 #include "core/css/StyleSheetContents.h"
 #include "core/css/StyleSheetList.h"
 #include "core/css/invalidation/StyleInvalidator.h"
+#include "core/css/parser/CSSPropertyParser.h"
 #include "core/css/resolver/FontBuilder.h"
 #include "core/css/resolver/StyleResolver.h"
 #include "core/css/resolver/StyleResolverStats.h"
@@ -4737,6 +4738,19 @@ Vector<IconURL> Document::iconURLs(int iconTypesMask)
     return iconURLs;
 }
 
+Color Document::brandColor() const
+{
+    if (!RuntimeEnabledFeatures::brandColorEnabled())
+        return Color();
+
+    for (HTMLMetaElement* metaElement = head() ? Traversal<HTMLMetaElement>::firstChild(*head()) : 0; metaElement; metaElement = Traversal<HTMLMetaElement>::nextSibling(*metaElement)) {
+        RGBA32 rgb;
+        if (equalIgnoringCase(metaElement->name(), "brand-color") && CSSPropertyParser::fastParseColor(rgb, metaElement->content().string().stripWhiteSpace(), true))
+            return Color(rgb);
+    }
+    return Color();
+}
+
 HTMLLinkElement* Document::linkManifest() const
 {
     HTMLHeadElement* head = this->head();

third_party/WebKit/Source/core/dom/Document.h

@@ -857,6 +857,8 @@ public:
 
     Vector<IconURL> iconURLs(int iconTypesMask);
 
+    Color brandColor() const;
+
     // Returns the HTMLLinkElement currently in use for the Web Manifest.
     // Returns null if there is no such element.
     HTMLLinkElement* linkManifest() const;

third_party/WebKit/Source/core/html/HTMLMetaElement-in.cpp

@@ -24,8 +24,11 @@
 #include "core/html/HTMLMetaElement.h"
 
 #include "HTMLNames.h"
+#include "RuntimeEnabledFeatures.h"
 #include "core/dom/Document.h"
+#include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
+#include "core/loader/FrameLoaderClient.h"
 
 namespace WebCore {
 
@@ -468,6 +471,8 @@ void HTMLMetaElement::process()
             processViewportContentAttribute("width=device-width", ViewportDescription::HandheldFriendlyMeta);
         else if (equalIgnoringCase(nameValue, "mobileoptimized"))
             processViewportContentAttribute("width=device-width, initial-scale=1", ViewportDescription::MobileOptimizedMeta);
+        else if (RuntimeEnabledFeatures::brandColorEnabled() && equalIgnoringCase(nameValue, "brand-color") && document().frame())
+            document().frame()->loader().client()->dispatchDidChangeBrandColor();
     }
 
     // Get the document to process the tag, but only if we're actually part of DOM

third_party/WebKit/Source/core/loader/EmptyClients.h

@@ -202,6 +202,7 @@ public:
     virtual void dispatchDidFinishDocumentLoad() OVERRIDE { }
     virtual void dispatchDidFinishLoad() OVERRIDE { }
     virtual void dispatchDidFirstVisuallyNonEmptyLayout() OVERRIDE { }
+    virtual void dispatchDidChangeBrandColor() OVERRIDE { };
 
     virtual NavigationPolicy decidePolicyForNavigation(const ResourceRequest&, DocumentLoader*, NavigationPolicy) OVERRIDE;
 

third_party/WebKit/Source/core/loader/FrameLoaderClient.h

@@ -109,6 +109,7 @@ namespace WebCore {
         virtual void dispatchDidFinishDocumentLoad() = 0;
         virtual void dispatchDidFinishLoad() = 0;
         virtual void dispatchDidFirstVisuallyNonEmptyLayout() = 0;
+        virtual void dispatchDidChangeBrandColor() = 0;
 
         virtual NavigationPolicy decidePolicyForNavigation(const ResourceRequest&, DocumentLoader*, NavigationPolicy) = 0;
 

third_party/WebKit/Source/platform/RuntimeEnabledFeatures.in

@@ -28,6 +28,7 @@ PrefixedVideoFullscreen status=test
 // The changes enabled behind this flag are very likely to break lots of content.
 // ** DO NOT use this flag unless you know what you are doing. **
 BleedingEdgeFastPaths
+BrandColor status=experimental
 
 ClientHintsDpr status=experimental
 Crypto status=experimental

third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp

@@ -450,6 +450,12 @@ void FrameLoaderClientImpl::dispatchDidFirstVisuallyNonEmptyLayout()
         m_webFrame->client()->didFirstVisuallyNonEmptyLayout(m_webFrame);
 }
 
+void FrameLoaderClientImpl::dispatchDidChangeBrandColor()
+{
+    if (m_webFrame->client())
+        m_webFrame->client()->didChangeBrandColor(m_webFrame);
+}
+
 NavigationPolicy FrameLoaderClientImpl::decidePolicyForNavigation(const ResourceRequest& request, DocumentLoader* loader, NavigationPolicy policy)
 {
     if (!m_webFrame->client())

third_party/WebKit/Source/web/FrameLoaderClientImpl.h

@@ -94,6 +94,7 @@ public:
     virtual void dispatchDidFinishDocumentLoad() OVERRIDE;
     virtual void dispatchDidFinishLoad() OVERRIDE;
     virtual void dispatchDidFirstVisuallyNonEmptyLayout() OVERRIDE;
+    virtual void dispatchDidChangeBrandColor() OVERRIDE;
     virtual WebCore::NavigationPolicy decidePolicyForNavigation(const WebCore::ResourceRequest&, WebCore::DocumentLoader*, WebCore::NavigationPolicy) OVERRIDE;
     virtual void dispatchWillRequestResource(WebCore::FetchRequest*) OVERRIDE;
     virtual void dispatchWillSendSubmitEvent(WebCore::HTMLFormElement*) OVERRIDE;

third_party/WebKit/Source/web/WebDocument.cpp

@@ -98,6 +98,11 @@ WebString WebDocument::referrer() const
     return constUnwrap<Document>()->referrer();
 }
 
+WebColor WebDocument::brandColor() const
+{
+    return constUnwrap<Document>()->brandColor().rgb();
+}
+
 WebURL WebDocument::openSearchDescriptionURL() const
 {
     return const_cast<Document*>(constUnwrap<Document>())->openSearchDescriptionURL();

third_party/WebKit/Source/web/tests/WebFrameTest.cpp

@@ -5544,4 +5544,43 @@ TEST_F(WebFrameTest, NodeImageTestCSS3DTransform)
     EXPECT_EQ(0, memcmp(bitmap.getPixels(), dragBitmap.getPixels(), bitmap.getSize()));
 }
 
+class BrandColorTestWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
+public:
+    BrandColorTestWebFrameClient()
+        : m_didNotify(false)
+        , m_brandColor(0)
+    {
+    }
+
+    bool didNotify() const
+    {
+        return m_didNotify;
+    }
+
+    WebColor brandColor() const
+    {
+        return m_brandColor;
+    }
+
+private:
+    virtual void didChangeBrandColor(WebLocalFrame* webLocalFrame)
+    {
+        m_didNotify = true;
+        m_brandColor = webLocalFrame->document().brandColor();
+    }
+
+    bool m_didNotify;
+    WebColor m_brandColor;
+};
+
+TEST_F(WebFrameTest, BrandColor)
+{
+    registerMockedHttpURLLoad("brand_color_test.html");
+    FrameTestHelpers::WebViewHelper webViewHelper;
+    BrandColorTestWebFrameClient client;
+    webViewHelper.initializeAndLoad(m_baseURL + "brand_color_test.html", false, &client);
+    EXPECT_TRUE(client.didNotify());
+    EXPECT_EQ(0xff0000ff, client.brandColor());
+}
+
 } // namespace

third_party/WebKit/Source/web/tests/data/brand_color_test.html

+ <html>
+  <head>
+  <title>Original Title</title>
+  <meta name="brand-color" content="  blue   ">
+  <head>
+  <body>
+  </body>
+</html>

third_party/WebKit/public/web/WebDocument.h

@@ -82,6 +82,7 @@ public:
     BLINK_EXPORT WebString encoding() const;
     BLINK_EXPORT WebString contentLanguage() const;
     BLINK_EXPORT WebString referrer() const;
+    BLINK_EXPORT WebColor brandColor() const;
 
     // The url of the OpenSearch Desription Document (if any).
     BLINK_EXPORT WebURL openSearchDescriptionURL() const;

third_party/WebKit/public/web/WebFrameClient.h

@@ -266,6 +266,9 @@ public:
     // The frame's manifest has changed.
     virtual void didChangeManifest(WebLocalFrame*) { }
 
+    // The frame's brand color has changed.
+    virtual void didChangeBrandColor(WebLocalFrame*) { }
+
 
     // Misc ----------------------------------------------------------------