Change PDF scaling factor from double to float.

This ultimate consumers of this want a float anyway, so changing to be a float
all the way through is less misleading.  This also avoids some "value possibly
truncated" warnings (currently disabled) on MSVC.

This also removes a couple of scale-related functions in metafile_skia_wrapper.*
that seem to be entirely unused.

BUG=none
TEST=none

Review URL: https://codereview.chromium.org/641923002

Cr-Commit-Position: refs/heads/master@{#298980}

1 files changed, 3 insertions, 3 deletions

diff --git a/chrome/service/service_utility_process_host.h b/chrome/service/service_utility_process_host.h
index f15bb01..6b320aa 100644
--- a/chrome/service/service_utility_process_host.h
+++ b/chrome/service/service_utility_process_host.h
@@ -49,7 +49,7 @@ class ServiceUtilityProcessHost : public content::ChildProcessHostDelegate {
     virtual void OnChildDied() {}
 
     virtual void OnRenderPDFPagesToMetafilePageDone(
-        double scale_factor,
+        float scale_factor,
         const printing::MetafilePlayer& emf) {}
 
     // Called when at all pages in the PDF has been rendered.
@@ -78,7 +78,7 @@ class ServiceUtilityProcessHost : public content::ChildProcessHostDelegate {
 
     // Invoked when a metafile file is ready.
     // Returns true if metafile successfully loaded from |file|.
-    bool MetafileAvailable(double scale_factor, base::File file);
+    bool MetafileAvailable(float scale_factor, base::File file);
 
     DISALLOW_COPY_AND_ASSIGN(Client);
   };
@@ -131,7 +131,7 @@ class ServiceUtilityProcessHost : public content::ChildProcessHostDelegate {
 
   // Messages handlers:
   void OnRenderPDFPagesToMetafilesPageCount(int page_count);
-  void OnRenderPDFPagesToMetafilesPageDone(bool success, double scale_factor);
+  void OnRenderPDFPagesToMetafilesPageDone(bool success, float scale_factor);
   void OnGetPrinterCapsAndDefaultsSucceeded(
       const std::string& printer_name,
       const printing::PrinterCapsAndDefaults& caps_and_defaults);