Removed unused parameters

I removed unused parameters wherever it was trivial to do so.
Review URL: https://codereview.chromium.org/12772003

git-svn-id: http://skia.googlecode.com/svn/trunk@8103 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/views/unix/SkOSWindow_Unix.cpp b/src/views/unix/SkOSWindow_Unix.cpp
index 5b6f101..a206445 100644
--- a/src/views/unix/SkOSWindow_Unix.cpp
+++ b/src/views/unix/SkOSWindow_Unix.cpp
@@ -32,7 +32,7 @@
 const long EVENT_MASK = StructureNotifyMask|ButtonPressMask|ButtonReleaseMask
         |ExposureMask|PointerMotionMask|KeyPressMask|KeyReleaseMask;
 
-SkOSWindow::SkOSWindow(void* unused)
+SkOSWindow::SkOSWindow(void*)
     : fVi(NULL)
     , fMSAASampleCount(0) {
     fUnixWindow.fDisplay = NULL;
@@ -380,10 +380,10 @@
     return false;
 }
 
-bool SkOSWindow::onHandleKey(SkKey key) {
+bool SkOSWindow::onHandleKey(SkKey) {
     return false;
 }
 
-bool SkOSWindow::onHandleKeyUp(SkKey key) {
+bool SkOSWindow::onHandleKeyUp(SkKey) {
     return false;
 }