Refactor ConsumerBase and it's derived classes.

Move setDefaultBufferSize, setDefaultBufferFormat, and
setDefaultBufferDataSpace into ConsumerBase and remove them from
CpuConsumer and BufferItemConsumer.

Bug: 19977701

Change-Id: Ic68992464c5da6da7a41c4063a53029a69efcd1b
diff --git a/include/gui/ConsumerBase.h b/include/gui/ConsumerBase.h
index d56fa89..af46ba1 100644
--- a/include/gui/ConsumerBase.h
+++ b/include/gui/ConsumerBase.h
@@ -79,6 +79,15 @@
     // See IGraphicBufferConsumer::detachBuffer
     status_t detachBuffer(int slot);
 
+    // See IGraphicBufferConsumer::setDefaultBufferSize
+    status_t setDefaultBufferSize(uint32_t width, uint32_t height);
+
+    // See IGraphicBufferConsumer::setDefaultBufferFormat
+    status_t setDefaultBufferFormat(PixelFormat defaultFormat);
+
+    // See IGraphicBufferConsumer::setDefaultBufferDataSpace
+    status_t setDefaultBufferDataSpace(android_dataspace defaultDataSpace);
+
 private:
     ConsumerBase(const ConsumerBase&);
     void operator=(const ConsumerBase&);