libgui: Split SurfaceTexture tests into more files

Extract the many different test fixtures and suites in SurfaceTexture_test.cpp
into separate files. No real functional changes, just tweaking headers to keep
things building (and adding a few copyright headers I forgot last time).

Change-Id: Id801bd5d617f0cc61d22508fb9b71b41694bdecf
diff --git a/libs/gui/tests/FrameWaiter.h b/libs/gui/tests/FrameWaiter.h
new file mode 100644
index 0000000..bdedba6
--- /dev/null
+++ b/libs/gui/tests/FrameWaiter.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_FRAME_WAITER_H
+#define ANDROID_FRAME_WAITER_H
+
+#include <gui/GLConsumer.h>
+
+namespace android {
+
+class FrameWaiter : public GLConsumer::FrameAvailableListener {
+public:
+    FrameWaiter():
+            mPendingFrames(0) {
+    }
+
+    void waitForFrame() {
+        Mutex::Autolock lock(mMutex);
+        while (mPendingFrames == 0) {
+            mCondition.wait(mMutex);
+        }
+        mPendingFrames--;
+    }
+
+    virtual void onFrameAvailable() {
+        Mutex::Autolock lock(mMutex);
+        mPendingFrames++;
+        mCondition.signal();
+    }
+
+private:
+    int mPendingFrames;
+    Mutex mMutex;
+    Condition mCondition;
+};
+
+} // namespace android
+
+#endif