1 files changed, 24 insertions, 9 deletions
diff --git a/src/3rdparty/webkit/WebCore/css/MediaQueryEvaluator.cpp b/src/3rdparty/webkit/WebCore/css/MediaQueryEvaluator.cpp
index 16af9812e..4963ed4ed 100644
--- a/src/3rdparty/webkit/WebCore/css/MediaQueryEvaluator.cpp
+++ b/src/3rdparty/webkit/WebCore/css/MediaQueryEvaluator.cpp
@@ -40,11 +40,17 @@
 #include "MediaList.h"
 #include "MediaQuery.h"
 #include "MediaQueryExp.h"
+#include "NodeRenderStyle.h"
 #include "Page.h"
+#include "RenderView.h"
 #include "RenderStyle.h"
 #include "PlatformScreen.h"
 #include <wtf/HashMap.h>
 
+#if ENABLE(3D_RENDERING)
+#include "RenderLayerCompositor.h"
+#endif
+
 namespace WebCore {
 
 using namespace MediaFeatureNames;
@@ -300,7 +306,8 @@ static bool device_heightMediaFeatureEval(CSSValue* value, RenderStyle* style, F
 {
     if (value) {
         FloatRect sg = screenRect(frame->page()->mainFrame()->view());
-        return value->isPrimitiveValue() && compareValue(static_cast<int>(sg.height()), static_cast<CSSPrimitiveValue*>(value)->computeLengthInt(style), op);
+        RenderStyle* rootStyle = frame->document()->documentElement()->renderStyle();
+        return value->isPrimitiveValue() && compareValue(static_cast<int>(sg.height()), static_cast<CSSPrimitiveValue*>(value)->computeLengthInt(style, rootStyle), op);
     }
     // ({,min-,max-}device-height)
     // assume if we have a device, assume non-zero
@@ -311,7 +318,8 @@ static bool device_widthMediaFeatureEval(CSSValue* value, RenderStyle* style, Fr
 {
     if (value) {
         FloatRect sg = screenRect(frame->page()->mainFrame()->view());
-        return value->isPrimitiveValue() && compareValue(static_cast<int>(sg.width()), static_cast<CSSPrimitiveValue*>(value)->computeLengthInt(style), op);
+        RenderStyle* rootStyle = frame->document()->documentElement()->renderStyle();
+        return value->isPrimitiveValue() && compareValue(static_cast<int>(sg.width()), static_cast<CSSPrimitiveValue*>(value)->computeLengthInt(style, rootStyle), op);
     }
     // ({,min-,max-}device-width)
     // assume if we have a device, assume non-zero
@@ -321,9 +329,10 @@ static bool device_widthMediaFeatureEval(CSSValue* value, RenderStyle* style, Fr
 static bool heightMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix op)
 {
     FrameView* view = frame->view();
-    
+    RenderStyle* rootStyle = frame->document()->documentElement()->renderStyle();
+
     if (value)
-        return value->isPrimitiveValue() && compareValue(view->layoutHeight(), static_cast<CSSPrimitiveValue*>(value)->computeLengthInt(style), op);
+        return value->isPrimitiveValue() && compareValue(view->layoutHeight(), static_cast<CSSPrimitiveValue*>(value)->computeLengthInt(style, rootStyle), op);
 
     return view->layoutHeight() != 0;
 }
@@ -331,9 +340,10 @@ static bool heightMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* f
 static bool widthMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix op)
 {
     FrameView* view = frame->view();
-    
+    RenderStyle* rootStyle = frame->document()->documentElement()->renderStyle();
+
     if (value)
-        return value->isPrimitiveValue() && compareValue(view->layoutWidth(), static_cast<CSSPrimitiveValue*>(value)->computeLengthInt(style), op);
+        return value->isPrimitiveValue() && compareValue(view->layoutWidth(), static_cast<CSSPrimitiveValue*>(value)->computeLengthInt(style, rootStyle), op);
 
     return view->layoutWidth() != 0;
 }
@@ -457,15 +467,20 @@ static bool transform_2dMediaFeatureEval(CSSValue* value, RenderStyle*, Frame*,
     return true;
 }
 
-static bool transform_3dMediaFeatureEval(CSSValue* value, RenderStyle*, Frame*, MediaFeaturePrefix op)
+static bool transform_3dMediaFeatureEval(CSSValue* value, RenderStyle*, Frame* frame, MediaFeaturePrefix op)
 {
     bool returnValueIfNoParameter;
     int have3dRendering;
 
 #if ENABLE(3D_RENDERING)
-    returnValueIfNoParameter = true;
-    have3dRendering = 1;
+    bool threeDEnabled = false;
+    if (RenderView* view = frame->contentRenderer())
+        threeDEnabled = view->compositor()->hasAcceleratedCompositing();
+
+    returnValueIfNoParameter = threeDEnabled;
+    have3dRendering = threeDEnabled ? 1 : 0;
 #else
+    UNUSED_PARAM(frame);
     returnValueIfNoParameter = false;
     have3dRendering = 0;
 #endif