Merge to XFA: Fix all relative includes to third_party.

- In non-standalone builds, use the provided jpeg library.
- Run gn format over all the GN files.
- Also roll DEPS for buildtools to c2f2598.
- And fix XFA's lack of #includes.

BUG=541704
R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1425153006 .

(cherry picked from commit 34bb6c58fe60206a08dc0a1f37b7cfe83e8c762c)

Review URL: https://codereview.chromium.org/1434543003 .
diff --git a/fpdfsdk/src/javascript/Document.cpp b/fpdfsdk/src/javascript/Document.cpp
index a51a7a6..e128860 100644
--- a/fpdfsdk/src/javascript/Document.cpp
+++ b/fpdfsdk/src/javascript/Document.cpp
@@ -6,7 +6,6 @@
 
 #include "Document.h"
 
-#include "../../../third_party/base/numerics/safe_math.h"
 #include "../../include/fsdk_mgr.h"  // For CPDFDoc_Environment.
 #include "../../include/javascript/IJavaScript.h"
 #include "Field.h"
@@ -19,6 +18,7 @@
 #include "JS_Value.h"
 #include "app.h"
 #include "resource.h"
+#include "third_party/base/numerics/safe_math.h"
 
 static v8::Isolate* GetIsolate(IJS_Context* cc) {
   CJS_Context* pContext = (CJS_Context*)cc;
diff --git a/fpdfsdk/src/javascript/JS_Object.h b/fpdfsdk/src/javascript/JS_Object.h
index 5075152..8872a4e 100644
--- a/fpdfsdk/src/javascript/JS_Object.h
+++ b/fpdfsdk/src/javascript/JS_Object.h
@@ -9,10 +9,10 @@
 
 #include <map>
 
-#include "../../../third_party/base/nonstd_unique_ptr.h"
 #include "../../include/fsdk_define.h"  // For FX_UINT
 #include "../../include/jsapi/fxjs_v8.h"
 #include "JS_Runtime.h"
+#include "third_party/base/nonstd_unique_ptr.h"
 
 class CJS_Context;
 class CJS_Object;
diff --git a/fpdfsdk/src/javascript/JS_Runtime_Stub.cpp b/fpdfsdk/src/javascript/JS_Runtime_Stub.cpp
index 7e3d788..ba9b4a0 100644
--- a/fpdfsdk/src/javascript/JS_Runtime_Stub.cpp
+++ b/fpdfsdk/src/javascript/JS_Runtime_Stub.cpp
@@ -4,9 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#include "../../../third_party/base/nonstd_unique_ptr.h"
 #include "../../include/fsdk_mgr.h"  // For CPDFDoc_Environment.
 #include "../../include/javascript/IJavaScript.h"
+#include "third_party/base/nonstd_unique_ptr.h"
 
 class CJS_ContextStub final : public IJS_Context {
  public:
diff --git a/fpdfsdk/src/javascript/app.cpp b/fpdfsdk/src/javascript/app.cpp
index 379170f..d6344d9 100644
--- a/fpdfsdk/src/javascript/app.cpp
+++ b/fpdfsdk/src/javascript/app.cpp
@@ -6,7 +6,6 @@
 
 #include "app.h"
 
-#include "../../../third_party/base/nonstd_unique_ptr.h"
 #include "../../include/fsdk_mgr.h"  // For CPDFDoc_Environment.
 #include "../../include/javascript/IJavaScript.h"
 #include "Document.h"
@@ -17,6 +16,7 @@
 #include "JS_Runtime.h"
 #include "JS_Value.h"
 #include "resource.h"
+#include "third_party/base/nonstd_unique_ptr.h"
 
 BEGIN_JS_STATIC_CONST(CJS_TimerObj)
 END_JS_STATIC_CONST()