Use float variants of PDFium page width/height APIs

FPDF_GetPage[Width|Height]F() are encouraged over
FPDF_GetPage[Width|Height](), which will be deprecated in the future.

Change-Id: I0445d7cb0a36249fc52d4ff60751543b787b2531
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2393246Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Commit-Queue: Daniel Hosseinian <dhoss@chromium.org>
Cr-Commit-Position: refs/heads/master@{#804503}

pdf/pdfium/pdfium_engine_exports.cc

@@ -37,9 +37,9 @@ int CalculatePosition(FPDF_PAGE page,
   // settings.bounds is in terms of the max DPI. Convert page sizes to match.
   int dpi = std::max(settings.dpi_x, settings.dpi_y);
   int page_width = static_cast<int>(
-      ConvertUnitDouble(FPDF_GetPageWidth(page), kPointsPerInch, dpi));
+      ConvertUnitDouble(FPDF_GetPageWidthF(page), kPointsPerInch, dpi));
   int page_height = static_cast<int>(
-      ConvertUnitDouble(FPDF_GetPageHeight(page), kPointsPerInch, dpi));
+      ConvertUnitDouble(FPDF_GetPageHeightF(page), kPointsPerInch, dpi));
 
   // Start by assuming that we will draw exactly to the bounds rect
   // specified.

pdf/pdfium/pdfium_page.cc

@@ -60,8 +60,8 @@ bool IsValidLink(const std::string& url) {
 
 pp::FloatRect FloatPageRectToPixelRect(FPDF_PAGE page,
                                        const pp::FloatRect& input) {
-  int output_width = FPDF_GetPageWidth(page);
-  int output_height = FPDF_GetPageHeight(page);
+  int output_width = FPDF_GetPageWidthF(page);
+  int output_height = FPDF_GetPageHeightF(page);
 
   int min_x;
   int min_y;

pdf/pdfium/pdfium_print.cc

@@ -317,7 +317,7 @@ bool PDFiumPrint::IsSourcePdfLandscape(FPDF_DOCUMENT doc) {
   DCHECK(pdf_page);
 
   bool is_source_landscape =
-      FPDF_GetPageWidth(pdf_page.get()) > FPDF_GetPageHeight(pdf_page.get());
+      FPDF_GetPageWidthF(pdf_page.get()) > FPDF_GetPageHeightF(pdf_page.get());
   return is_source_landscape;
 }
 
@@ -423,8 +423,8 @@ ScopedFPDFDocument PDFiumPrint::CreateSinglePageRasterPdf(
   ScopedFPDFDocument temp_doc(FPDF_CreateNewDocument());
   DCHECK(temp_doc);
 
-  double source_page_width = FPDF_GetPageWidth(page_to_print);
-  double source_page_height = FPDF_GetPageHeight(page_to_print);
+  float source_page_width = FPDF_GetPageWidthF(page_to_print);
+  float source_page_height = FPDF_GetPageHeightF(page_to_print);
 
   // For computing size in pixels, use a square dpi since the source PDF page
   // has square DPI.