DynamicPartitionControl: support retrofit devices

On retrofit devices:

* The retrofit update includes block devices at source
  slot (for example, system_a, vendor_a, product_a).
  This is done automatically because the retrofit update
  does not look different from regular updates in OTA
  client's perspective.

* The first update after the retrofit update includes
  the rest of the block devices (in the above example,
  system_b, vendor_b and product_b).

In order to do the second,

* use NewForUpdate() API from liblp to automatically
  include block devices at the target slot when the metadata
  is loaded.

* Use FlashPartitionTable() API to flash metadata to system_b
  directly without reading existing metadata from it.

Test: manual OTA on retrofit devices
Bug: 118506262
Change-Id: Ib2c15b8a1a04271320bfef408813723a5b2a7bd7

1 files changed, 9 insertions, 6 deletions

diff --git a/boot_control_android_unittest.cc b/boot_control_android_unittest.cc
index e98d2f4b..6460ffec 100644
--- a/boot_control_android_unittest.cc
+++ b/boot_control_android_unittest.cc
@@ -298,10 +298,12 @@ class BootControlAndroidTest : public ::testing::Test {
   }
 
   void SetMetadata(uint32_t slot, const PartitionMetadata& metadata) {
-    EXPECT_CALL(dynamicControl(), LoadMetadataBuilder(GetSuperDevice(), slot))
+    EXPECT_CALL(dynamicControl(),
+                LoadMetadataBuilder(GetSuperDevice(), slot, _))
         .Times(AnyNumber())
-        .WillRepeatedly(Invoke(
-            [metadata](auto, auto) { return NewFakeMetadata(metadata); }));
+        .WillRepeatedly(Invoke([metadata](auto, auto, auto) {
+          return NewFakeMetadata(metadata);
+        }));
   }
 
   // Expect that MapPartitionOnDeviceMapper is called on target() metadata slot
@@ -394,7 +396,7 @@ class BootControlAndroidTest : public ::testing::Test {
         .Times(0);
     // Should not load metadata from target slot.
     EXPECT_CALL(dynamicControl(),
-                LoadMetadataBuilder(GetSuperDevice(), target()))
+                LoadMetadataBuilder(GetSuperDevice(), target(), _))
         .Times(0);
   }
 
@@ -512,8 +514,9 @@ TEST_P(BootControlAndroidTestP, DeleteAll) {
 
 // Test corrupt source metadata case.
 TEST_P(BootControlAndroidTestP, CorruptedSourceMetadata) {
-  EXPECT_CALL(dynamicControl(), LoadMetadataBuilder(GetSuperDevice(), source()))
-      .WillOnce(Invoke([](auto, auto) { return nullptr; }));
+  EXPECT_CALL(dynamicControl(),
+              LoadMetadataBuilder(GetSuperDevice(), source(), _))
+      .WillOnce(Invoke([](auto, auto, auto) { return nullptr; }));
   EXPECT_FALSE(InitPartitionMetadata(target(), {{"system", 1_GiB}}))
       << "Should not be able to continue with corrupt source metadata";
 }