Make common page base class for XFA and non-XFA.

Now that both are ref-counted, we can replace ifdef's with some
polymorphism.

Bug: pdfium:760

Change-Id: Ie22ea259c9af56fa569f0af268b8e7065789a3f2
Reviewed-on: https://pdfium-review.googlesource.com/32892
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/core/fpdfapi/page/cpdf_page.cpp b/core/fpdfapi/page/cpdf_page.cpp
index c5c85635b2..918c55ef5e 100644
--- a/core/fpdfapi/page/cpdf_page.cpp
+++ b/core/fpdfapi/page/cpdf_page.cpp
@@ -74,6 +74,26 @@ CPDF_Page::CPDF_Page(CPDF_Document* pDocument,
 
 CPDF_Page::~CPDF_Page() {}
 
+CPDF_Page* CPDF_Page::AsPDFPage() {
+  return this;
+}
+
+CPDFXFA_Page* CPDF_Page::AsXFAPage() {
+  return nullptr;
+}
+
+CPDF_Document* CPDF_Page::GetDocument() const {
+  return GetPDFDocument();
+}
+
+float CPDF_Page::GetPageWidth() const {
+  return m_PageSize.width;
+}
+
+float CPDF_Page::GetPageHeight() const {
+  return m_PageSize.height;
+}
+
 bool CPDF_Page::IsPage() const {
   return true;
 }