Add namespace and-re-arrange PDFium's local copy of chromium /base.

Any projects DEPS'd into chromium and requiring a /base
subset should have a local copy of that subset in a
separate namespace. This will avoid future naming conflicts.

Re-arrange the directory structure to better identify what
came from chromium's base, and to make drop-in replacement
easier for files that contain hard-coded "base/" in their
#include directives.

R=jam@chromium.org

Review URL: https://codereview.chromium.org/900753002

1 files changed, 1 insertions, 1 deletions

diff --git a/BUILD.gn b/BUILD.gn
index b657836bdc..bb369eb786 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -95,7 +95,7 @@ static_library("pdfium") {
 
   deps = [
     "third_party:bigint",
-    "third_party:safemath",
+    "third_party:pdfium_base",
     ":fdrm",
     ":formfiller",
     ":fpdfapi",