Update RenderImage when the image src is cleared

Source/core/rendering/RenderImageResource.cpp

Index: Source/core/rendering/RenderImageResource.cpp
diff --git a/Source/core/rendering/RenderImageResource.cpp b/Source/core/rendering/RenderImageResource.cpp
index d6504f7b23d41e272a1e9f07cc365f7f4293be9e..c50e59756398357c6e1fc9de3ade44e667b3b457 100644
--- a/Source/core/rendering/RenderImageResource.cpp
+++ b/Source/core/rendering/RenderImageResource.cpp
@@ -30,6 +30,7 @@
 
 #include "core/loader/cache/CachedImage.h"
 #include "core/platform/graphics/Image.h"
+#include "core/rendering/RenderImage.h"
 #include "core/rendering/RenderObject.h"
 
 namespace WebCore {
@@ -73,6 +74,13 @@ void RenderImageResource::setCachedImage(CachedImage* newImage)
         m_cachedImage->addClient(m_renderer);
         if (m_cachedImage->errorOccurred())
             m_renderer->imageChanged(m_cachedImage.get());
+    } else if (m_renderer->isImage() && m_renderer->isRenderImage()) {

[esprehn, 2013/07/26 03:18:17]

Checking isRenderImage() should be enough here.

+        // This is the case where the URL is empty.
+        // Clears old image content off the screen.
+        RenderImage* renderImage = toRenderImage(m_renderer);
+        renderImage->setImageSizeForAltText();
+        renderImage->setNeedsLayoutAndPrefWidthsRecalc();
+        renderImage->scheduleRelayout();

[esprehn, 2013/07/26 03:18:17]

You don't manually need to call scheduleRelayout(). Doing setNeedsLayout is
enough.

     }
 }