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/libs/gui/ConsumerBase.cpp b/libs/gui/ConsumerBase.cpp
index e576018..9ae5370 100644
--- a/libs/gui/ConsumerBase.cpp
+++ b/libs/gui/ConsumerBase.cpp
@@ -178,6 +178,22 @@
     return result;
 }
 
+status_t ConsumerBase::setDefaultBufferSize(uint32_t width, uint32_t height) {
+    Mutex::Autolock _l(mMutex);
+    return mConsumer->setDefaultBufferSize(width, height);
+}
+
+status_t ConsumerBase::setDefaultBufferFormat(PixelFormat defaultFormat) {
+    Mutex::Autolock _l(mMutex);
+    return mConsumer->setDefaultBufferFormat(defaultFormat);
+}
+
+status_t ConsumerBase::setDefaultBufferDataSpace(
+        android_dataspace defaultDataSpace) {
+    Mutex::Autolock _l(mMutex);
+    return mConsumer->setDefaultBufferDataSpace(defaultDataSpace);
+}
+
 void ConsumerBase::dump(String8& result) const {
     dump(result, "");
 }