Update CPDF_Number member names

Rename `m_Number` to `number_` to match the Google C++ style guide.

Change-Id: I6df3729283e8a6079ab9712872ad237c3087d95c
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/124271
Commit-Queue: Andy Phan <andyphan@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>

core/fpdfapi/parser/cpdf_number.cpp

diff --git a/core/fpdfapi/parser/cpdf_number.cpp b/core/fpdfapi/parser/cpdf_number.cpp
index 6b9d78d..50e626d 100644
--- a/core/fpdfapi/parser/cpdf_number.cpp
+++ b/core/fpdfapi/parser/cpdf_number.cpp
@@ -10,11 +10,11 @@
 
 CPDF_Number::CPDF_Number() = default;
 
-CPDF_Number::CPDF_Number(int value) : m_Number(value) {}
+CPDF_Number::CPDF_Number(int value) : number_(value) {}
 
-CPDF_Number::CPDF_Number(float value) : m_Number(value) {}
+CPDF_Number::CPDF_Number(float value) : number_(value) {}
 
-CPDF_Number::CPDF_Number(ByteStringView str) : m_Number(str) {}
+CPDF_Number::CPDF_Number(ByteStringView str) : number_(str) {}
 
 CPDF_Number::~CPDF_Number() = default;
 
@@ -23,17 +23,17 @@
 }
 
 RetainPtr<CPDF_Object> CPDF_Number::Clone() const {
-  return m_Number.IsInteger()
-             ? pdfium::MakeRetain<CPDF_Number>(m_Number.GetSigned())
-             : pdfium::MakeRetain<CPDF_Number>(m_Number.GetFloat());
+  return number_.IsInteger()
+             ? pdfium::MakeRetain<CPDF_Number>(number_.GetSigned())
+             : pdfium::MakeRetain<CPDF_Number>(number_.GetFloat());
 }
 
 float CPDF_Number::GetNumber() const {
-  return m_Number.GetFloat();
+  return number_.GetFloat();
 }
 
 int CPDF_Number::GetInteger() const {
-  return m_Number.GetSigned();
+  return number_.GetSigned();
 }
 
 CPDF_Number* CPDF_Number::AsMutableNumber() {
@@ -41,12 +41,12 @@
 }
 
 void CPDF_Number::SetString(const ByteString& str) {
-  m_Number = FX_Number(str.AsStringView());
+  number_ = FX_Number(str.AsStringView());
 }
 
 ByteString CPDF_Number::GetString() const {
-  return m_Number.IsInteger() ? ByteString::FormatInteger(m_Number.GetSigned())
-                              : ByteString::FormatFloat(m_Number.GetFloat());
+  return number_.IsInteger() ? ByteString::FormatInteger(number_.GetSigned())
+                             : ByteString::FormatFloat(number_.GetFloat());
 }
 
 bool CPDF_Number::WriteTo(IFX_ArchiveStream* archive,

core/fpdfapi/parser/cpdf_number.h

diff --git a/core/fpdfapi/parser/cpdf_number.h b/core/fpdfapi/parser/cpdf_number.h
index 93b0f9d..b98f9c7 100644
--- a/core/fpdfapi/parser/cpdf_number.h
+++ b/core/fpdfapi/parser/cpdf_number.h
@@ -27,7 +27,7 @@
   bool WriteTo(IFX_ArchiveStream* archive,
                const CPDF_Encryptor* encryptor) const override;
 
-  bool IsInteger() const { return m_Number.IsInteger(); }
+  bool IsInteger() const { return number_.IsInteger(); }
 
  private:
   CPDF_Number();
@@ -36,7 +36,7 @@
   explicit CPDF_Number(ByteStringView str);
   ~CPDF_Number() override;
 
-  FX_Number m_Number;
+  FX_Number number_;
 };
 
 inline CPDF_Number* ToNumber(CPDF_Object* obj) {