partalloc: de-indent split tests

Now that the PurgeDiscardable test cases are split into tests, remove
their indentation layers and wrapping braces. This change is purely
syntactical.

Bug: 1128436
Change-Id: Ib3d6805187c68ad9912a3f98d52187e26ece9b04
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2481075Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#818113}

base/allocator/partition_allocator/partition_alloc_unittest.cc

@@ -1962,7 +1962,6 @@ TEST_F(PartitionAllocTest, PreferActiveOverEmpty) {
 // Tests the API to purge discardable memory.
 TEST_F(PartitionAllocTest, PurgeDiscardableSecondPage) {
   // Free the second of two 4096 byte allocations and then purge.
-  {
   void* ptr1 =
       allocator.root()->Alloc(SystemPageSize() - kExtraAllocSize, type_name);
   char* ptr2 = reinterpret_cast<char*>(
@@ -1993,12 +1992,10 @@ TEST_F(PartitionAllocTest, PurgeDiscardableSecondPage) {
   EXPECT_EQ(3u, slot_span->num_unprovisioned_slots);
 
   allocator.root()->Free(ptr1);
-  }
 }
 
 TEST_F(PartitionAllocTest, PurgeDiscardableFirstPage) {
   // Free the first of two 4096 byte allocations and then purge.
-  {
   char* ptr1 = reinterpret_cast<char*>(
       allocator.root()->Alloc(SystemPageSize() - kExtraAllocSize, type_name));
   void* ptr2 =
@@ -2028,11 +2025,9 @@ TEST_F(PartitionAllocTest, PurgeDiscardableFirstPage) {
   CHECK_PAGE_IN_CORE(ptr1 - kPointerOffset, false);
 
   allocator.root()->Free(ptr2);
-  }
 }
 
 TEST_F(PartitionAllocTest, PurgeDiscardableNonPageSizedAlloc) {
-  {
   const size_t requested_size = 2.25 * SystemPageSize();
   char* ptr1 = reinterpret_cast<char*>(
       allocator.root()->Alloc(requested_size - kExtraAllocSize, type_name));
@@ -2075,7 +2070,6 @@ TEST_F(PartitionAllocTest, PurgeDiscardableNonPageSizedAlloc) {
 
   allocator.root()->Free(ptr3);
   allocator.root()->Free(ptr4);
-  }
 }
 
 TEST_F(PartitionAllocTest, PurgeDiscardableManyPages) {
@@ -2086,7 +2080,6 @@ TEST_F(PartitionAllocTest, PurgeDiscardableManyPages) {
 // TODO(palmer): Refactor this to branch on page size instead of architecture,
 // for clarity of purpose and for applicability to more architectures.
 #if defined(_MIPS_ARCH_LOONGSON)
-  {
   char* ptr1 = reinterpret_cast<char*>(allocator.root()->Alloc(
       (32 * SystemPageSize()) - kExtraAllocSize, type_name));
   memset(ptr1, 'A', (32 * SystemPageSize()) - kExtraAllocSize);
@@ -2115,9 +2108,7 @@ TEST_F(PartitionAllocTest, PurgeDiscardableManyPages) {
   CheckPageInCore(ptr1 - kPointerOffset + (SystemPageSize() * 31), false);
 
   allocator.root()->Free(ptr1);
-  }
 #else
-  {
   char* ptr1 = reinterpret_cast<char*>(allocator.root()->Alloc(
       (64 * SystemPageSize()) - kExtraAllocSize, type_name));
   memset(ptr1, 'A', (64 * SystemPageSize()) - kExtraAllocSize);
@@ -2150,7 +2141,6 @@ TEST_F(PartitionAllocTest, PurgeDiscardableManyPages) {
   CHECK_PAGE_IN_CORE(ptr1 - kPointerOffset + (SystemPageSize() * 63), false);
 
   allocator.root()->Free(ptr1);
-  }
 #endif
 }
 
@@ -2158,7 +2148,6 @@ TEST_F(PartitionAllocTest, PurgeDiscardableWithFreeListRewrite) {
   // This sub-test tests truncation of the provisioned slots in a trickier
   // case where the freelist is rewritten.
   allocator.root()->PurgeMemory(PartitionPurgeDecommitEmptySlotSpans);
-  {
   char* ptr1 = reinterpret_cast<char*>(
       allocator.root()->Alloc(SystemPageSize() - kExtraAllocSize, type_name));
   void* ptr2 =
@@ -2221,13 +2210,11 @@ TEST_F(PartitionAllocTest, PurgeDiscardableWithFreeListRewrite) {
   allocator.root()->Free(ptr1);
   allocator.root()->Free(ptr2);
   allocator.root()->Free(ptr3);
-  }
 }
 
 TEST_F(PartitionAllocTest, PurgeDiscardableDoubleTruncateFreeList) {
   // This sub-test is similar, but tests a double-truncation.
   allocator.root()->PurgeMemory(PartitionPurgeDecommitEmptySlotSpans);
-  {
   char* ptr1 = reinterpret_cast<char*>(
       allocator.root()->Alloc(SystemPageSize() - kExtraAllocSize, type_name));
   void* ptr2 =
@@ -2277,7 +2264,6 @@ TEST_F(PartitionAllocTest, PurgeDiscardableDoubleTruncateFreeList) {
 
   allocator.root()->Free(ptr1);
   allocator.root()->Free(ptr2);
-  }
 }
 
 TEST_F(PartitionAllocTest, ReallocMovesCookies) {