Fixed C++ type conversion.

BUG=239879
TBR=noamsml

Review URL: https://codereview.chromium.org/345453005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@278226 0039d316-1c4b-4281-b951-d872f2087c98

printing/backend/cups_helper.cc

@@ -36,7 +36,7 @@ const char kDuplex[] = "Duplex";
 const char kDuplexNone[] = "None";
 const char kPageSize[] = "PageSize";
 
-const double kMicronsPerPoint = kHundrethsMMPerInch / kPointsPerInch * 10;
+const double kMicronsPerPoint = 10.0f * kHundrethsMMPerInch / kPointsPerInch;
 
 #if !defined(OS_MACOSX)
 void ParseLpOptions(const base::FilePath& filepath,

printing/backend/cups_helper_unittest.cc

@@ -198,10 +198,10 @@ TEST(PrintBackendCupsHelperTest, TestPpdParsingPageSize) {
   ASSERT_EQ(2UL, caps.papers.size());
   EXPECT_EQ("Letter", caps.papers[0].vendor_id);
   EXPECT_EQ("US Letter", caps.papers[0].display_name);
-  EXPECT_EQ(214200, caps.papers[0].size_um.width());
-  EXPECT_EQ(277200, caps.papers[0].size_um.height());
+  EXPECT_EQ(215900, caps.papers[0].size_um.width());
+  EXPECT_EQ(279400, caps.papers[0].size_um.height());
   EXPECT_EQ("Legal", caps.papers[1].vendor_id);
   EXPECT_EQ("US Legal", caps.papers[1].display_name);
-  EXPECT_EQ(214200, caps.papers[1].size_um.width());
-  EXPECT_EQ(352800, caps.papers[1].size_um.height());
+  EXPECT_EQ(215900, caps.papers[1].size_um.width());
+  EXPECT_EQ(355600, caps.papers[1].size_um.height());
 }