app_server: Fixed/documented uses of new without nothrow.

* This should fix all occurrences except for those in the drawing
  sub directory.
* In some cases, the use of new without nothrow was okay, though.

src/servers/app/CursorManager.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2001-2009, Haiku.
+ * Copyright 2001-2016, Haiku.
  * Distributed under the terms of the MIT License.
  *
  * Authors:
@@ -357,6 +357,11 @@ CursorManager::FindCursor(int32 token)
 }
 
 
+/*!	\brief Initializes a predefined system cursor.
+
+	This method must only be called in the CursorManager's constructor,
+	as it may throw exceptions.
+*/
 void
 CursorManager::_InitCursor(ServerCursor*& cursorMember,
 	const uint8* cursorBits, BCursorID id, const BPoint& hotSpot)

src/servers/app/Desktop.cpp

@@ -481,6 +481,8 @@ Desktop::RegisterListener(DesktopListener* listener)
 }
 
 
+/*!	This method is allowed to throw exceptions.
+*/
 status_t
 Desktop::Init()
 {

src/servers/app/ServerFont.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2001-2014, Haiku.
+ * Copyright 2001-2016, Haiku.
  * Distributed under the terms of the MIT License.
  *
  * Authors:
@@ -31,6 +31,7 @@
 #include <stdio.h>
 #include <string.h>
 
+
 // functions needed to convert a freetype vector graphics to a BShape
 inline BPoint
 VectorToPoint(const FT_Vector *vector)
@@ -420,7 +421,11 @@ ServerFont::GetGlyphShapes(const char charArray[], int32 numChars,
 
 	const char* string = charArray;
 	for (int i = 0; i < numChars; i++) {
-		shapeArray[i] = new BShape();
+		shapeArray[i] = new (std::nothrow) BShape();
+		if (shapeArray[i] == NULL) {
+			PutTransformedFace(face);
+			return B_NO_MEMORY;
+		}
 		FT_Load_Char(face, UTF8ToCharCode(&string), FT_LOAD_NO_BITMAP);
 		FT_Outline outline = face->glyph->outline;
 		FT_Outline_Decompose(&outline, &funcs, shapeArray[i]);
@@ -871,7 +876,10 @@ ServerFont::TruncateString(BString* inOut, uint32 mode, float width) const
 	int32 numChars = inOut->CountChars();
 
 	// get the escapement of each glyph in font units
-	float* escapementArray = new float[numChars];
+	float* escapementArray = new (std::nothrow) float[numChars];
+	if (escapementArray == NULL)
+		return;
+
 	static escapement_delta delta = (escapement_delta){ 0.0, 0.0 };
 	if (GetEscapements(inOut->String(), inOut->Length(), numChars, delta,
 		escapementArray) == B_OK) {

src/servers/app/font/FontManager.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2001-2009, Haiku.
+ * Copyright 2001-2016, Haiku.
  * Distributed under the terms of the MIT License.
  *
  * Authors:
@@ -7,13 +7,13 @@
  *		Axel Dörfler, axeld@pinc-software.de
  */
 
+
 /*!	Manages font families and styles */
 
 
-#include "FontFamily.h"
 #include "FontManager.h"
-#include "ServerConfig.h"
+
-#include "ServerFont.h"
+#include <new>
 
 #include <Autolock.h>
 #include <Directory.h>
@@ -25,7 +25,10 @@
 #include <Path.h>
 #include <String.h>
 
-#include <new>
+#include "FontFamily.h"
+#include "ServerConfig.h"
+#include "ServerFont.h"
+
 
 //#define TRACE_FONT_MANAGER
 #ifdef TRACE_FONT_MANAGER
@@ -608,8 +611,8 @@ FontManager::_AddFont(font_directory& directory, BEntry& entry)
 	FTRACE(("\tadd style: %s, %s\n", face->family_name, face->style_name));
 
 	// the FontStyle takes over ownership of the FT_Face object
-	FontStyle *style = new FontStyle(nodeRef, path.Path(), face);
+	FontStyle *style = new (std::nothrow) FontStyle(nodeRef, path.Path(), face);
-	if (!family->AddStyle(style)) {
+	if (style == NULL || !family->AddStyle(style)) {
 		delete style;
 		delete family;
 		return B_NO_MEMORY;