Add noexcept to move constructors and assignment operators.

Bug: 116614593
Test: build with WITH_TIDY=1
Change-Id: Ic3993d88eb3066aef402d74c4d543c56a1dfd5c3
diff --git a/tools/aapt2/util/BigBuffer.h b/tools/aapt2/util/BigBuffer.h
index 3045255..d4b3abc 100644
--- a/tools/aapt2/util/BigBuffer.h
+++ b/tools/aapt2/util/BigBuffer.h
@@ -68,7 +68,7 @@
    */
   explicit BigBuffer(size_t block_size);
 
-  BigBuffer(BigBuffer&& rhs);
+  BigBuffer(BigBuffer&& rhs) noexcept;
 
   /**
    * Number of occupied bytes in all the allocated blocks.
@@ -136,7 +136,7 @@
 inline BigBuffer::BigBuffer(size_t block_size)
     : block_size_(block_size), size_(0) {}
 
-inline BigBuffer::BigBuffer(BigBuffer&& rhs)
+inline BigBuffer::BigBuffer(BigBuffer&& rhs) noexcept
     : block_size_(rhs.block_size_),
       size_(rhs.size_),
       blocks_(std::move(rhs.blocks_)) {}