Bug 978700: Remove unused variables in widget/, r=roc

widget/gonk/Framebuffer.cpp

@@ -110,7 +110,6 @@ Open()
     // that's double buffered with r5g6b5 format.  Hence the
     // hard-coded numbers here.
     gfxImageFormat format = gfxImageFormat::RGB16_565;
-    int bytesPerPixel = gfxASurface::BytePerPixelFromFormat(format);
     if (!sScreenSize) {
         sScreenSize = new gfxIntSize(sVi.xres, sVi.yres);
     }

widget/gonk/nativewindow/GonkNativeWindowClientJB.cpp

@@ -246,7 +246,6 @@ int GonkNativeWindowClient::cancelBuffer(android_native_buffer_t* buffer,
 
 int GonkNativeWindowClient::getSlotFromBufferLocked(
         android_native_buffer_t* buffer) const {
-    bool dumpedState = false;
     for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
         if (mSlots[i].buffer != NULL &&
                 mSlots[i].buffer->handle == buffer->handle) {