webui: minimize webui flicker.

content/public/common/content_client.h

Index: content/public/common/content_client.h
diff --git a/content/public/common/content_client.h b/content/public/common/content_client.h
index 13f0d5c57dc0b986c9c016e7404b6c71a5345440..4dcb9eda316fefcd034c26f4a603f21125714fc2 100644
--- a/content/public/common/content_client.h
+++ b/content/public/common/content_client.h
@@ -64,6 +64,17 @@ CONTENT_EXPORT ContentRendererClient* SetRendererClientForTesting(
 CONTENT_EXPORT ContentUtilityClient* SetUtilityClientForTesting(
     ContentUtilityClient* u);
 
+struct CONTENT_EXPORT WebUITextStyles {

[davidben, 2014/11/25 22:26:25]

Should this be in its own header? It's pretty tiny, but
http://www.chromium.org/developers/content-module/content-api does say to put
every struct in its own header. (I guess if I were looking for WebUITestStyles,
I wouldn't think to put it in there. I guess the function could also just have
three output parameters.)

[Dan Beam, 2014/11/25 22:49:31]

Deleted.

+  // One or more font families (e.g. "Verdana, sans-serif").
+  std::string font_family;
+
+  // The base font size for webui pages (e.g. "75%").
+  std::string font_size;
+
+  // Text directionality (e.g. "ltr" or "rtl").
+  std::string text_direction;
+};
+
 // Interface that the embedder implements.
 class CONTENT_EXPORT ContentClient {
  public:
@@ -114,6 +125,10 @@ class CONTENT_EXPORT ContentClient {
   virtual base::RefCountedStaticMemory* GetDataResourceBytes(
       int resource_id) const;
 
+  // Returns some shared WebUI text styles. These map to the direction:,
+  // font-family:, and font-size: attributes in CSS.
+  virtual WebUITextStyles GetWebUITextStyles() const;

[davidben, 2014/11/25 22:26:25]

Actually, is this hook even needed? The Chrome implementation just pulls it from
ui/base/webui which content already depends on.

[Dan Beam, 2014/11/25 22:49:31]

Removed to just use ui/base/webui/ directly from content/browser/

+
   // Returns a native image given its id.
   virtual gfx::Image& GetNativeImageNamed(int resource_id) const;