Disable map in Work Chrome

third_party/sqlite/sqlite.gyp

Index: third_party/sqlite/sqlite.gyp
diff --git a/third_party/sqlite/sqlite.gyp b/third_party/sqlite/sqlite.gyp
index d0357b7de70e5f3dcbb38431618cb639c1d4c108..db9df69169d62c18d1ea59e9b17bae9a6afeb9c0 100644
--- a/third_party/sqlite/sqlite.gyp
+++ b/third_party/sqlite/sqlite.gyp
@@ -28,12 +28,6 @@
       # appropriately.  Chromium doesn't configure SQLite for that, and would
       # prefer to control distribution to worker threads.
       'SQLITE_MAX_WORKER_THREADS=0',
-      # Allow 256MB mmap footprint per connection.  Should not be too open-ended
-      # as that could cause memory fragmentation.  50MB encompasses the 99th
-      # percentile of Chrome databases in the wild.
-      # TODO(shess): A 64-bit-specific value could be 1G or more.
-      # TODO(shess): Figure out if exceeding this is costly.
-      'SQLITE_MAX_MMAP_SIZE=268435456',
       # Use a read-only memory map when mmap'ed I/O is enabled to prevent memory
       # stompers from directly corrupting the database.
       # TODO(shess): Upstream the ability to use this define.
@@ -252,5 +246,23 @@
         },
       ],
     }],
+    ['android_channel == "work"', {
+      'target_defaults': {
+        'defines': [
+          'SQLITE_MAX_MMAP_SIZE=0',
+        ],
+      },
+    }, { # else: android_channel != "work"
+      'target_defaults': {
+        'defines': [
+          # Allow 256MB mmap footprint per connection.  Should not be too open-ended
+          # as that could cause memory fragmentation.  50MB encompasses the 99th
+          # percentile of Chrome databases in the wild.
+          # TODO(shess): A 64-bit-specific value could be 1G or more.
+          # TODO(shess): Figure out if exceeding this is costly.
+          'SQLITE_MAX_MMAP_SIZE=268435456',
+        ],
+      },
+    }],
   ],
 }