Add Pepper support for several GL extensions

ppapi/c/ppb_opengles2.h

Index: ppapi/c/ppb_opengles2.h
diff --git a/ppapi/c/ppb_opengles2.h b/ppapi/c/ppb_opengles2.h
index ec3204aea23b288153efff0983b27e4f5ae0a4f3..b4dc027d1c4c8fcba3eb1713bde7bedc7533e59c 100644
--- a/ppapi/c/ppb_opengles2.h
+++ b/ppapi/c/ppb_opengles2.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -302,5 +302,60 @@ struct PPB_OpenGLES2 {
       PP_Resource context, GLint x, GLint y, GLsizei width, GLsizei height);
 };
 
+#define PPB_OPENGLES2_INSTANCEDARRAYS_INTERFACE_1_0 "PPB_OpenGLES2InstancedArrays;1.0"  // NOLINT
+#define PPB_OPENGLES2_INSTANCEDARRAYS_INTERFACE PPB_OPENGLES2_INSTANCEDARRAYS_INTERFACE_1_0  // NOLINT
+
+struct PPB_OpenGLES2InstancedArrays {
+  void (*DrawArraysInstancedANGLE)(
+      PP_Resource context, GLenum mode, GLint first, GLsizei count,
+      GLsizei primcount);
+  void (*DrawElementsInstancedANGLE)(
+      PP_Resource context, GLenum mode, GLsizei count, GLenum type,
+      const void* indices, GLsizei primcount);
+  void (*VertexAttribDivisorANGLE)(
+      PP_Resource context, GLuint index, GLuint divisor);
+};
+
+#define PPB_OPENGLES2_FRAMEBUFFERBLIT_INTERFACE_1_0 "PPB_OpenGLES2FramebufferBlit;1.0"  // NOLINT
+#define PPB_OPENGLES2_FRAMEBUFFERBLIT_INTERFACE PPB_OPENGLES2_FRAMEBUFFERBLIT_INTERFACE_1_0  // NOLINT
+
+struct PPB_OpenGLES2FramebufferBlit {
+  void (*BlitFramebufferEXT)(
+      PP_Resource context, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+      GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask,
+      GLenum filter);
+};
+
+#define PPB_OPENGLES2_FRAMEBUFFERMULTISAMPLE_INTERFACE_1_0 "PPB_OpenGLES2FramebufferMultisample;1.0"  // NOLINT
+#define PPB_OPENGLES2_FRAMEBUFFERMULTISAMPLE_INTERFACE PPB_OPENGLES2_FRAMEBUFFERMULTISAMPLE_INTERFACE_1_0  // NOLINT
+
+struct PPB_OpenGLES2FramebufferMultisample {
+  void (*RenderbufferStorageMultisampleEXT)(
+      PP_Resource context, GLenum target, GLsizei samples,
+      GLenum internalformat, GLsizei width, GLsizei height);
+};
+
+#define PPB_OPENGLES2_CHROMIUMENABLEFEATURE_INTERFACE_1_0 "PPB_OpenGLES2ChromiumEnableFeature;1.0"  // NOLINT
+#define PPB_OPENGLES2_CHROMIUMENABLEFEATURE_INTERFACE PPB_OPENGLES2_CHROMIUMENABLEFEATURE_INTERFACE_1_0  // NOLINT
+
+struct PPB_OpenGLES2ChromiumEnableFeature {
+  GLboolean (*EnableFeatureCHROMIUM)(PP_Resource context, const char* feature);
+};
+
+#define PPB_OPENGLES2_CHROMIUMMAPSUB_INTERFACE_1_0 "PPB_OpenGLES2ChromiumMapSub;1.0"  // NOLINT
+#define PPB_OPENGLES2_CHROMIUMMAPSUB_INTERFACE PPB_OPENGLES2_CHROMIUMMAPSUB_INTERFACE_1_0  // NOLINT
+
+struct PPB_OpenGLES2ChromiumMapSub {
+  void* (*MapBufferSubDataCHROMIUM)(
+      PP_Resource context, GLuint target, GLintptr offset, GLsizeiptr size,
+      GLenum access);
+  void (*UnmapBufferSubDataCHROMIUM)(PP_Resource context, const void* mem);
+  void* (*MapTexSubImage2DCHROMIUM)(

[nfullagar, 2012/02/16 23:25:43]

If MapTexSubImage2DCHROMIUM is moving here, this CL could delete
ppapi/c/dev/ppb_gles_chromium_texture_mapping_dev.h
(but see comment below about dev vs. non-dev extensions) 
And remove #include ....ppb_gles_chromium_texture_mapping_dev.h from
corresponding files.

+      PP_Resource context, GLenum target, GLint level, GLint xoffset,
+      GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type,
+      GLenum access);
+  void (*UnmapTexSubImage2DCHROMIUM)(PP_Resource context, const void* mem);

[nfullagar, 2012/02/16 23:25:43]

Traditionally new PPAPI interfaces would hang out as a dev interface for a
while.  Are we sure we want to expose these right out of the gate as non-dev
interfaces?  Perhaps have a ppapi/c/dev/ppb_opengles2ext_dev.h to hold new
extensions before they come out of dev?

+};
+
 #endif  // PPAPI_C_PPB_OPENGLES2_H_