Initial boilerplate for an updatable graphics jar

Bug: 149773383
Test: builds
Test: hacks to verify that @hide apis are actually two-way hidden
Change-Id: I148b54fe47560b2335e9d878ed93bf167d6c7517
diff --git a/libs/hwui/api/current.txt b/libs/hwui/api/current.txt
new file mode 100644
index 0000000..c396a20
--- /dev/null
+++ b/libs/hwui/api/current.txt
@@ -0,0 +1,23 @@
+// Signature format: 2.0
+package android.graphics {
+
+  public class ColorMatrix {
+    ctor public ColorMatrix();
+    ctor public ColorMatrix(float[]);
+    ctor public ColorMatrix(android.graphics.ColorMatrix);
+    method public final float[] getArray();
+    method public void postConcat(android.graphics.ColorMatrix);
+    method public void preConcat(android.graphics.ColorMatrix);
+    method public void reset();
+    method public void set(android.graphics.ColorMatrix);
+    method public void set(float[]);
+    method public void setConcat(android.graphics.ColorMatrix, android.graphics.ColorMatrix);
+    method public void setRGB2YUV();
+    method public void setRotate(int, float);
+    method public void setSaturation(float);
+    method public void setScale(float, float, float, float);
+    method public void setYUV2RGB();
+  }
+
+}
+
diff --git a/libs/hwui/api/module-lib-current.txt b/libs/hwui/api/module-lib-current.txt
new file mode 100644
index 0000000..d802177
--- /dev/null
+++ b/libs/hwui/api/module-lib-current.txt
@@ -0,0 +1 @@
+// Signature format: 2.0
diff --git a/libs/hwui/api/module-lib-removed.txt b/libs/hwui/api/module-lib-removed.txt
new file mode 100644
index 0000000..d802177
--- /dev/null
+++ b/libs/hwui/api/module-lib-removed.txt
@@ -0,0 +1 @@
+// Signature format: 2.0
diff --git a/libs/hwui/api/removed.txt b/libs/hwui/api/removed.txt
new file mode 100644
index 0000000..d802177
--- /dev/null
+++ b/libs/hwui/api/removed.txt
@@ -0,0 +1 @@
+// Signature format: 2.0
diff --git a/libs/hwui/api/system-current.txt b/libs/hwui/api/system-current.txt
new file mode 100644
index 0000000..d802177
--- /dev/null
+++ b/libs/hwui/api/system-current.txt
@@ -0,0 +1 @@
+// Signature format: 2.0
diff --git a/libs/hwui/api/system-removed.txt b/libs/hwui/api/system-removed.txt
new file mode 100644
index 0000000..d802177
--- /dev/null
+++ b/libs/hwui/api/system-removed.txt
@@ -0,0 +1 @@
+// Signature format: 2.0