Fix "unused variable" warnings.

chrome/android/java/src/org/chromium/chrome/browser/compositor/CompositorView.java

Index: chrome/android/java/src/org/chromium/chrome/browser/compositor/CompositorView.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/compositor/CompositorView.java b/chrome/android/java/src/org/chromium/chrome/browser/compositor/CompositorView.java
index b4e3ee4f05bf5b783c9b403e25ae327fe36748ef..f7a4cab8364a7bd0e60e41ef0b1a9c00801e6c68 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/compositor/CompositorView.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/compositor/CompositorView.java
@@ -15,7 +15,6 @@ import android.view.SurfaceHolder;
 import android.view.SurfaceView;
 import android.view.View;
 
-import org.chromium.base.ApiCompatibilityUtils;
 import org.chromium.base.CommandLine;
 import org.chromium.base.Log;
 import org.chromium.base.TraceEvent;
@@ -178,7 +177,6 @@ public class CompositorView
         mTabContentManager = tabContentManager;
 
         mNativeCompositorView = nativeInit(lowMemDevice,
-                ApiCompatibilityUtils.getColor(getResources(), R.color.tab_switcher_background),
                 windowAndroid.getNativePointer(), layerTitleCache, tabContentManager);
 
         assert !getHolder().getSurface().isValid()
@@ -370,7 +368,7 @@ public class CompositorView
     }
 
     // Implemented in native
-    private native long nativeInit(boolean lowMemDevice, int emptyColor, long nativeWindowAndroid,
+    private native long nativeInit(boolean lowMemDevice, long nativeWindowAndroid,
             LayerTitleCache layerTitleCache, TabContentManager tabContentManager);
     private native void nativeDestroy(long nativeCompositorView);
     private native ResourceManager nativeGetResourceManager(long nativeCompositorView);