Add explicit std:: namespace to code from <cXYZ> includes.

Some platforms seem to implicitly include the <XYZ.h> headers
which also add some types and functions (like strlen, size_t,...)
into the global namespace.

On other platforms though, this can result in compile errors, which
is noticeable in WebKit on e.g. QNX. See also:
https://bugs.webkit.org/show_bug.cgi?id=95468

https://codereview.appspot.com/6843083/

Contributed by Milian Wolff, Klaralvdavens Datakonsult AB.

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1565 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/compiler/preprocessor/Input.cpp b/src/compiler/preprocessor/Input.cpp
index c3de95f..11868c1 100644
--- a/src/compiler/preprocessor/Input.cpp
+++ b/src/compiler/preprocessor/Input.cpp
@@ -26,7 +26,7 @@
     for (int i = 0; i < mCount; ++i)
     {
         int len = length ? length[i] : -1;
-        mLength.push_back(len < 0 ? strlen(mString[i]) : len);
+        mLength.push_back(len < 0 ? std::strlen(mString[i]) : len);
     }
 }
 
@@ -37,7 +37,7 @@
     {
         int size = mLength[mReadLoc.sIndex] - mReadLoc.cIndex;
         size = std::min(size, maxSize);
-        memcpy(buf + nRead, mString[mReadLoc.sIndex] + mReadLoc.cIndex, size);
+        std::memcpy(buf + nRead, mString[mReadLoc.sIndex] + mReadLoc.cIndex, size);
         nRead += size;
         mReadLoc.cIndex += size;
 
diff --git a/src/compiler/preprocessor/MacroExpander.cpp b/src/compiler/preprocessor/MacroExpander.cpp
index 701cec9..086cd78 100644
--- a/src/compiler/preprocessor/MacroExpander.cpp
+++ b/src/compiler/preprocessor/MacroExpander.cpp
@@ -57,7 +57,7 @@
 
 MacroExpander::~MacroExpander()
 {
-    for (size_t i = 0; i < mContextStack.size(); ++i)
+    for (std::size_t i = 0; i < mContextStack.size(); ++i)
     {
         delete mContextStack[i];
     }
@@ -224,7 +224,7 @@
         replaceMacroParams(macro, args, replacements);
     }
 
-    for (size_t i = 0; i < replacements->size(); ++i)
+    for (std::size_t i = 0; i < replacements->size(); ++i)
     {
         Token& repl = replacements->at(i);
         if (i == 0)
@@ -311,7 +311,7 @@
     // Pre-expand each argument before substitution.
     // This step expands each argument individually before they are
     // inserted into the macro body.
-    for (size_t i = 0; i < args->size(); ++i)
+    for (std::size_t i = 0; i < args->size(); ++i)
     {
         MacroArg& arg = args->at(i);
         TokenLexer lexer(&arg);
@@ -332,7 +332,7 @@
                                        const std::vector<MacroArg>& args,
                                        std::vector<Token>* replacements)
 {
-    for (size_t i = 0; i < macro.replacements.size(); ++i)
+    for (std::size_t i = 0; i < macro.replacements.size(); ++i)
     {
         const Token& repl = macro.replacements[i];
         if (repl.type != Token::IDENTIFIER)
@@ -352,13 +352,13 @@
             continue;
         }
 
-        size_t iArg = std::distance(macro.parameters.begin(), iter);
+        std::size_t iArg = std::distance(macro.parameters.begin(), iter);
         const MacroArg& arg = args[iArg];
         if (arg.empty())
         {
             continue;
         }
-        size_t iRepl = replacements->size();
+        std::size_t iRepl = replacements->size();
         replacements->insert(replacements->end(), arg.begin(), arg.end());
         // The replacement token inherits padding properties from
         // macro replacement token.
diff --git a/src/compiler/preprocessor/MacroExpander.h b/src/compiler/preprocessor/MacroExpander.h
index 7c5c543..21b6757 100644
--- a/src/compiler/preprocessor/MacroExpander.h
+++ b/src/compiler/preprocessor/MacroExpander.h
@@ -53,7 +53,7 @@
     struct MacroContext
     {
         const Macro* macro;
-        size_t index;
+        std::size_t index;
         std::vector<Token> replacements;
 
         MacroContext() : macro(0), index(0) { }
diff --git a/src/compiler/preprocessor/Tokenizer.h b/src/compiler/preprocessor/Tokenizer.h
index a594d2d..c603135 100644
--- a/src/compiler/preprocessor/Tokenizer.h
+++ b/src/compiler/preprocessor/Tokenizer.h
@@ -32,7 +32,7 @@
         bool leadingSpace;
         bool lineStart;
     };
-    static const size_t kMaxTokenLength;
+    static const std::size_t kMaxTokenLength;
 
     Tokenizer(Diagnostics* diagnostics);
     ~Tokenizer();