2 files changed, 8 insertions, 0 deletions
diff --git a/Source/WebCore/platform/graphics/android/TilesManager.h b/Source/WebCore/platform/graphics/android/TilesManager.h
index 5ea4ccb..25f6ba2 100644
--- a/Source/WebCore/platform/graphics/android/TilesManager.h
+++ b/Source/WebCore/platform/graphics/android/TilesManager.h
@@ -150,6 +150,10 @@ public:
         m_invertedScreen = invert;
     }
 
+    void setInvertedScreenContrast(float contrast) {
+        m_shader.setContrast(contrast);
+    }
+
 private:
 
     TilesManager();
diff --git a/Source/WebKit/android/nav/WebView.cpp b/Source/WebKit/android/nav/WebView.cpp
index 69d1ee8..a19e7f4 100644
--- a/Source/WebKit/android/nav/WebView.cpp
+++ b/Source/WebKit/android/nav/WebView.cpp
@@ -2524,6 +2524,10 @@ static void nativeSetProperty(JNIEnv *env, jobject obj, jstring jkey, jstring jv
         else
             TilesManager::instance()->setInvertedScreen(false);
     }
+    if (key == "gfxInvertedScreenContrast") {
+        float contrast = value.toFloat();
+        TilesManager::instance()->setInvertedScreenContrast(contrast);
+    }
 }
 
 static jstring nativeGetProperty(JNIEnv *env, jobject obj, jstring key)