Added crop rect to LayerDrawable to not crop TextureView.
Verified manually with ExoPlayer that TextureView isn't cropping.

Test: Did the manual test and
atest TextureViewCameraTest
atest TextureViewSnapshotTest
atest TextureViewStressTest
atest TextureViewTest
atest PixelCopyTest
atest BitmapTest
atest HardwareBitmapTests

and with HwAccelerationTest
Added crop test at ag/15430851

BUG=152621633

Change-Id: If1f448a94908cbf51272bc0d1bbbe1e113fd15f3
diff --git a/libs/hwui/Layer.h b/libs/hwui/Layer.h
index e99e762..656a817 100644
--- a/libs/hwui/Layer.h
+++ b/libs/hwui/Layer.h
@@ -74,10 +74,18 @@
 
     void setColorFilter(sk_sp<SkColorFilter> filter) { mColorFilter = filter; };
 
-    inline SkMatrix& getTexTransform() { return texTransform; }
-
     inline SkMatrix& getTransform() { return transform; }
 
+    inline SkRect getCropRect() { return mCropRect; }
+
+    inline void setCropRect(const SkRect cropRect) { mCropRect = cropRect; }
+
+    inline void setTextureTransform(uint32_t textureTransform) {
+        mTextureTransform = textureTransform;
+    }
+
+    inline uint32_t getTextureTransform() { return mTextureTransform; }
+
     /**
      * Posts a decStrong call to the appropriate thread.
      * Thread-safe.
@@ -116,16 +124,21 @@
     SkBlendMode mode;
 
     /**
-     * Optional texture coordinates transform.
-     */
-    SkMatrix texTransform;
-
-    /**
      * Optional transform.
      */
     SkMatrix transform;
 
     /**
+     * Optional crop
+     */
+    SkRect mCropRect;
+
+    /**
+     * Optional transform
+     */
+    uint32_t mTextureTransform;
+
+    /**
      * An image backing the layer.
      */
     sk_sp<SkImage> layerImage;